drivers/net/i40e/i40e_ethdev_vf.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <sys/queue.h>
  35 #include <stdio.h>
  36 #include <errno.h>
  37 #include <stdint.h>
  38 #include <string.h>
  39 #include <unistd.h>
  40 #include <stdarg.h>
  41 #include <inttypes.h>
  42 #include <rte_byteorder.h>
  43 #include <rte_common.h>
  44 #include <rte_cycles.h>
  45
  46 #include <rte_interrupts.h>
  47 #include <rte_log.h>
  48 #include <rte_debug.h>
  49 #include <rte_pci.h>
  50 #include <rte_atomic.h>
  51 #include <rte_branch_prediction.h>
  52 #include <rte_memory.h>
  53 #include <rte_memzone.h>
  54 #include <rte_eal.h>
  55 #include <rte_alarm.h>
  56 #include <rte_ether.h>
  57 #include <rte_ethdev.h>
  58 #include <rte_atomic.h>
  59 #include <rte_malloc.h>
  60 #include <rte_dev.h>
  61
  62 #include "i40e_logs.h"
  63 #include "base/i40e_prototype.h"
  64 #include "base/i40e_adminq_cmd.h"
  65 #include "base/i40e_type.h"
  66
  67 #include "i40e_rxtx.h"
  68 #include "i40e_ethdev.h"
  69 #include "i40e_pf.h"
  70 #define I40EVF_VSI_DEFAULT_MSIX_INTR     1
  71 #define I40EVF_VSI_DEFAULT_MSIX_INTR_LNX 0
  72
  73 /* busy wait delay in msec */
  74 #define I40EVF_BUSY_WAIT_DELAY 10
  75 #define I40EVF_BUSY_WAIT_COUNT 50
  76 #define MAX_RESET_WAIT_CNT     20
  77
  78 struct i40evf_arq_msg_info {
  79         enum i40e_virtchnl_ops ops;
  80         enum i40e_status_code result;
  81         uint16_t buf_len;
  82         uint16_t msg_len;
  83         uint8_t *msg;
  84 };
  85
  86 struct vf_cmd_info {
  87         enum i40e_virtchnl_ops ops;
  88         uint8_t *in_args;
  89         uint32_t in_args_size;
  90         uint8_t *out_buffer;
  91         /* Input & output type. pass in buffer size and pass out
  92          * actual return result
  93          */
  94         uint32_t out_size;
  95 };
  96
  97 enum i40evf_aq_result {
  98         I40EVF_MSG_ERR = -1, /* Meet error when accessing admin queue */
  99         I40EVF_MSG_NON,      /* Read nothing from admin queue */
 100         I40EVF_MSG_SYS,      /* Read system msg from admin queue */
 101         I40EVF_MSG_CMD,      /* Read async command result */
 102 };
 103
 104 static int i40evf_dev_configure(struct rte_eth_dev *dev);
 105 static int i40evf_dev_start(struct rte_eth_dev *dev);
 106 static void i40evf_dev_stop(struct rte_eth_dev *dev);
 107 static void i40evf_dev_info_get(struct rte_eth_dev *dev,
 108                                 struct rte_eth_dev_info *dev_info);
 109 static int i40evf_dev_link_update(struct rte_eth_dev *dev,
 110                                   __rte_unused int wait_to_complete);
 111 static void i40evf_dev_stats_get(struct rte_eth_dev *dev,
 112                                 struct rte_eth_stats *stats);
 113 static int i40evf_dev_xstats_get(struct rte_eth_dev *dev,
 114                                  struct rte_eth_xstat *xstats, unsigned n);
 115 static int i40evf_dev_xstats_get_names(struct rte_eth_dev *dev,
 116                                        struct rte_eth_xstat_name *xstats_names,
 117                                        unsigned limit);
 118 static void i40evf_dev_xstats_reset(struct rte_eth_dev *dev);
 119 static int i40evf_vlan_filter_set(struct rte_eth_dev *dev,
 120                                   uint16_t vlan_id, int on);
 121 static void i40evf_vlan_offload_set(struct rte_eth_dev *dev, int mask);
 122 static int i40evf_vlan_pvid_set(struct rte_eth_dev *dev, uint16_t pvid,
 123                                 int on);
 124 static void i40evf_dev_close(struct rte_eth_dev *dev);
 125 static void i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev);
 126 static void i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev);
 127 static void i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev);
 128 static void i40evf_dev_allmulticast_disable(struct rte_eth_dev *dev);
 129 static int i40evf_get_link_status(struct rte_eth_dev *dev,
 130                                   struct rte_eth_link *link);
 131 static int i40evf_init_vlan(struct rte_eth_dev *dev);
 132 static int i40evf_dev_rx_queue_start(struct rte_eth_dev *dev,
 133                                      uint16_t rx_queue_id);
 134 static int i40evf_dev_rx_queue_stop(struct rte_eth_dev *dev,
 135                                     uint16_t rx_queue_id);
 136 static int i40evf_dev_tx_queue_start(struct rte_eth_dev *dev,
 137                                      uint16_t tx_queue_id);
 138 static int i40evf_dev_tx_queue_stop(struct rte_eth_dev *dev,
 139                                     uint16_t tx_queue_id);
 140 static void i40evf_add_mac_addr(struct rte_eth_dev *dev,
 141                                 struct ether_addr *addr,
 142                                 uint32_t index,
 143                                 uint32_t pool);
 144 static void i40evf_del_mac_addr(struct rte_eth_dev *dev, uint32_t index);
 145 static int i40evf_dev_rss_reta_update(struct rte_eth_dev *dev,
 146                         struct rte_eth_rss_reta_entry64 *reta_conf,
 147                         uint16_t reta_size);
 148 static int i40evf_dev_rss_reta_query(struct rte_eth_dev *dev,
 149                         struct rte_eth_rss_reta_entry64 *reta_conf,
 150                         uint16_t reta_size);
 151 static int i40evf_config_rss(struct i40e_vf *vf);
 152 static int i40evf_dev_rss_hash_update(struct rte_eth_dev *dev,
 153                                       struct rte_eth_rss_conf *rss_conf);
 154 static int i40evf_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
 155                                         struct rte_eth_rss_conf *rss_conf);
 156 static int
 157 i40evf_dev_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id);
 158 static int
 159 i40evf_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id);
 160 static void i40evf_handle_pf_event(__rte_unused struct rte_eth_dev *dev,
 161                                    uint8_t *msg,
 162                                    uint16_t msglen);
 163
 164 /* Default hash key buffer for RSS */
 165 static uint32_t rss_key_default[I40E_VFQF_HKEY_MAX_INDEX + 1];
 166
 167 struct rte_i40evf_xstats_name_off {
 168         char name[RTE_ETH_XSTATS_NAME_SIZE];
 169         unsigned offset;
 170 };
 171
 172 static const struct rte_i40evf_xstats_name_off rte_i40evf_stats_strings[] = {
 173         {"rx_bytes", offsetof(struct i40e_eth_stats, rx_bytes)},
 174         {"rx_unicast_packets", offsetof(struct i40e_eth_stats, rx_unicast)},
 175         {"rx_multicast_packets", offsetof(struct i40e_eth_stats, rx_multicast)},
 176         {"rx_broadcast_packets", offsetof(struct i40e_eth_stats, rx_broadcast)},
 177         {"rx_dropped_packets", offsetof(struct i40e_eth_stats, rx_discards)},
 178         {"rx_unknown_protocol_packets", offsetof(struct i40e_eth_stats,
 179                 rx_unknown_protocol)},
 180         {"tx_bytes", offsetof(struct i40e_eth_stats, tx_bytes)},
 181         {"tx_unicast_packets", offsetof(struct i40e_eth_stats, tx_bytes)},
 182         {"tx_multicast_packets", offsetof(struct i40e_eth_stats, tx_bytes)},
 183         {"tx_broadcast_packets", offsetof(struct i40e_eth_stats, tx_bytes)},
 184         {"tx_dropped_packets", offsetof(struct i40e_eth_stats, tx_bytes)},
 185         {"tx_error_packets", offsetof(struct i40e_eth_stats, tx_bytes)},
 186 };
 187
 188 #define I40EVF_NB_XSTATS (sizeof(rte_i40evf_stats_strings) / \
 189                 sizeof(rte_i40evf_stats_strings[0]))
 190
 191 static const struct eth_dev_ops i40evf_eth_dev_ops = {
 192         .dev_configure        = i40evf_dev_configure,
 193         .dev_start            = i40evf_dev_start,
 194         .dev_stop             = i40evf_dev_stop,
 195         .promiscuous_enable   = i40evf_dev_promiscuous_enable,
 196         .promiscuous_disable  = i40evf_dev_promiscuous_disable,
 197         .allmulticast_enable  = i40evf_dev_allmulticast_enable,
 198         .allmulticast_disable = i40evf_dev_allmulticast_disable,
 199         .link_update          = i40evf_dev_link_update,
 200         .stats_get            = i40evf_dev_stats_get,
 201         .xstats_get           = i40evf_dev_xstats_get,
 202         .xstats_get_names     = i40evf_dev_xstats_get_names,
 203         .xstats_reset         = i40evf_dev_xstats_reset,
 204         .dev_close            = i40evf_dev_close,
 205         .dev_infos_get        = i40evf_dev_info_get,
 206         .dev_supported_ptypes_get = i40e_dev_supported_ptypes_get,
 207         .vlan_filter_set      = i40evf_vlan_filter_set,
 208         .vlan_offload_set     = i40evf_vlan_offload_set,
 209         .vlan_pvid_set        = i40evf_vlan_pvid_set,
 210         .rx_queue_start       = i40evf_dev_rx_queue_start,
 211         .rx_queue_stop        = i40evf_dev_rx_queue_stop,
 212         .tx_queue_start       = i40evf_dev_tx_queue_start,
 213         .tx_queue_stop        = i40evf_dev_tx_queue_stop,
 214         .rx_queue_setup       = i40e_dev_rx_queue_setup,
 215         .rx_queue_release     = i40e_dev_rx_queue_release,
 216         .rx_queue_intr_enable = i40evf_dev_rx_queue_intr_enable,
 217         .rx_queue_intr_disable = i40evf_dev_rx_queue_intr_disable,
 218         .rx_descriptor_done   = i40e_dev_rx_descriptor_done,
 219         .tx_queue_setup       = i40e_dev_tx_queue_setup,
 220         .tx_queue_release     = i40e_dev_tx_queue_release,
 221         .rx_queue_count       = i40e_dev_rx_queue_count,
 222         .rxq_info_get         = i40e_rxq_info_get,
 223         .txq_info_get         = i40e_txq_info_get,
 224         .mac_addr_add         = i40evf_add_mac_addr,
 225         .mac_addr_remove      = i40evf_del_mac_addr,
 226         .reta_update          = i40evf_dev_rss_reta_update,
 227         .reta_query           = i40evf_dev_rss_reta_query,
 228         .rss_hash_update      = i40evf_dev_rss_hash_update,
 229         .rss_hash_conf_get    = i40evf_dev_rss_hash_conf_get,
 230 };
 231
 232 /*
 233  * Read data in admin queue to get msg from pf driver
 234  */
 235 static enum i40evf_aq_result
 236 i40evf_read_pfmsg(struct rte_eth_dev *dev, struct i40evf_arq_msg_info *data)
 237 {
 238         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 239         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 240         struct i40e_arq_event_info event;
 241         enum i40e_virtchnl_ops opcode;
 242         enum i40e_status_code retval;
 243         int ret;
 244         enum i40evf_aq_result result = I40EVF_MSG_NON;
 245
 246         event.buf_len = data->buf_len;
 247         event.msg_buf = data->msg;
 248         ret = i40e_clean_arq_element(hw, &event, NULL);
 249         /* Can't read any msg from adminQ */
 250         if (ret) {
 251                 if (ret != I40E_ERR_ADMIN_QUEUE_NO_WORK)
 252                         result = I40EVF_MSG_ERR;
 253                 return result;
 254         }
 255
 256         opcode = (enum i40e_virtchnl_ops)rte_le_to_cpu_32(event.desc.cookie_high);
 257         retval = (enum i40e_status_code)rte_le_to_cpu_32(event.desc.cookie_low);
 258         /* pf sys event */
 259         if (opcode == I40E_VIRTCHNL_OP_EVENT) {
 260                 struct i40e_virtchnl_pf_event *vpe =
 261                         (struct i40e_virtchnl_pf_event *)event.msg_buf;
 262
 263                 result = I40EVF_MSG_SYS;
 264                 switch (vpe->event) {
 265                 case I40E_VIRTCHNL_EVENT_LINK_CHANGE:
 266                         vf->link_up =
 267                                 vpe->event_data.link_event.link_status;
 268                         vf->link_speed =
 269                                 vpe->event_data.link_event.link_speed;
 270                         vf->pend_msg |= PFMSG_LINK_CHANGE;
 271                         PMD_DRV_LOG(INFO, "Link status update:%s",
 272                                     vf->link_up ? "up" : "down");
 273                         break;
 274                 case I40E_VIRTCHNL_EVENT_RESET_IMPENDING:
 275                         vf->vf_reset = true;
 276                         vf->pend_msg |= PFMSG_RESET_IMPENDING;
 277                         PMD_DRV_LOG(INFO, "vf is reseting");
 278                         break;
 279                 case I40E_VIRTCHNL_EVENT_PF_DRIVER_CLOSE:
 280                         vf->dev_closed = true;
 281                         vf->pend_msg |= PFMSG_DRIVER_CLOSE;
 282                         PMD_DRV_LOG(INFO, "PF driver closed");
 283                         break;
 284                 default:
 285                         PMD_DRV_LOG(ERR, "%s: Unknown event %d from pf",
 286                                     __func__, vpe->event);
 287                 }
 288         } else {
 289                 /* async reply msg on command issued by vf previously */
 290                 result = I40EVF_MSG_CMD;
 291                 /* Actual data length read from PF */
 292                 data->msg_len = event.msg_len;
 293         }
 294
 295         data->result = retval;
 296         data->ops = opcode;
 297
 298         return result;
 299 }
 300
 301 /**
 302  * clear current command. Only call in case execute
 303  * _atomic_set_cmd successfully.
 304  */
 305 static inline void
 306 _clear_cmd(struct i40e_vf *vf)
 307 {
 308         rte_wmb();
 309         vf->pend_cmd = I40E_VIRTCHNL_OP_UNKNOWN;
 310 }
 311
 312 /*
 313  * Check there is pending cmd in execution. If none, set new command.
 314  */
 315 static inline int
 316 _atomic_set_cmd(struct i40e_vf *vf, enum i40e_virtchnl_ops ops)
 317 {
 318         int ret = rte_atomic32_cmpset(&vf->pend_cmd,
 319                         I40E_VIRTCHNL_OP_UNKNOWN, ops);
 320
 321         if (!ret)
 322                 PMD_DRV_LOG(ERR, "There is incomplete cmd %d", vf->pend_cmd);
 323
 324         return !ret;
 325 }
 326
 327 #define MAX_TRY_TIMES 200
 328 #define ASQ_DELAY_MS  10
 329
 330 static int
 331 i40evf_execute_vf_cmd(struct rte_eth_dev *dev, struct vf_cmd_info *args)
 332 {
 333         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 334         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 335         struct i40evf_arq_msg_info info;
 336         enum i40evf_aq_result ret;
 337         int err, i = 0;
 338
 339         if (_atomic_set_cmd(vf, args->ops))
 340                 return -1;
 341
 342         info.msg = args->out_buffer;
 343         info.buf_len = args->out_size;
 344         info.ops = I40E_VIRTCHNL_OP_UNKNOWN;
 345         info.result = I40E_SUCCESS;
 346
 347         err = i40e_aq_send_msg_to_pf(hw, args->ops, I40E_SUCCESS,
 348                      args->in_args, args->in_args_size, NULL);
 349         if (err) {
 350                 PMD_DRV_LOG(ERR, "fail to send cmd %d", args->ops);
 351                 _clear_cmd(vf);
 352                 return err;
 353         }
 354
 355         switch (args->ops) {
 356         case I40E_VIRTCHNL_OP_RESET_VF:
 357                 /*no need to process in this function */
 358                 err = 0;
 359                 break;
 360         case I40E_VIRTCHNL_OP_VERSION:
 361         case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
 362                 /* for init adminq commands, need to poll the response */
 363                 err = -1;
 364                 do {
 365                         ret = i40evf_read_pfmsg(dev, &info);
 366                         if (ret == I40EVF_MSG_CMD) {
 367                                 err = 0;
 368                                 break;
 369                         } else if (ret == I40EVF_MSG_ERR)
 370                                 break;
 371                         rte_delay_ms(ASQ_DELAY_MS);
 372                         /* If don't read msg or read sys event, continue */
 373                 } while (i++ < MAX_TRY_TIMES);
 374                 _clear_cmd(vf);
 375                 break;
 376
 377         default:
 378                 /* for other adminq in running time, waiting the cmd done flag */
 379                 err = -1;
 380                 do {
 381                         if (vf->pend_cmd == I40E_VIRTCHNL_OP_UNKNOWN) {
 382                                 err = 0;
 383                                 break;
 384                         }
 385                         rte_delay_ms(ASQ_DELAY_MS);
 386                         /* If don't read msg or read sys event, continue */
 387                 } while (i++ < MAX_TRY_TIMES);
 388                 break;
 389         }
 390
 391         return err | vf->cmd_retval;
 392 }
 393
 394 /*
 395  * Check API version with sync wait until version read or fail from admin queue
 396  */
 397 static int
 398 i40evf_check_api_version(struct rte_eth_dev *dev)
 399 {
 400         struct i40e_virtchnl_version_info version, *pver;
 401         int err;
 402         struct vf_cmd_info args;
 403         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 404
 405         version.major = I40E_VIRTCHNL_VERSION_MAJOR;
 406         version.minor = I40E_VIRTCHNL_VERSION_MINOR;
 407
 408         args.ops = I40E_VIRTCHNL_OP_VERSION;
 409         args.in_args = (uint8_t *)&version;
 410         args.in_args_size = sizeof(version);
 411         args.out_buffer = vf->aq_resp;
 412         args.out_size = I40E_AQ_BUF_SZ;
 413
 414         err = i40evf_execute_vf_cmd(dev, &args);
 415         if (err) {
 416                 PMD_INIT_LOG(ERR, "fail to execute command OP_VERSION");
 417                 return err;
 418         }
 419
 420         pver = (struct i40e_virtchnl_version_info *)args.out_buffer;
 421         vf->version_major = pver->major;
 422         vf->version_minor = pver->minor;
 423         if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
 424                 PMD_DRV_LOG(INFO, "Peer is DPDK PF host");
 425         else if ((vf->version_major == I40E_VIRTCHNL_VERSION_MAJOR) &&
 426                 (vf->version_minor <= I40E_VIRTCHNL_VERSION_MINOR))
 427                 PMD_DRV_LOG(INFO, "Peer is Linux PF host");
 428         else {
 429                 PMD_INIT_LOG(ERR, "PF/VF API version mismatch:(%u.%u)-(%u.%u)",
 430                                         vf->version_major, vf->version_minor,
 431                                                 I40E_VIRTCHNL_VERSION_MAJOR,
 432                                                 I40E_VIRTCHNL_VERSION_MINOR);
 433                 return -1;
 434         }
 435
 436         return 0;
 437 }
 438
 439 static int
 440 i40evf_get_vf_resource(struct rte_eth_dev *dev)
 441 {
 442         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 443         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 444         int err;
 445         struct vf_cmd_info args;
 446         uint32_t caps, len;
 447
 448         args.ops = I40E_VIRTCHNL_OP_GET_VF_RESOURCES;
 449         args.out_buffer = vf->aq_resp;
 450         args.out_size = I40E_AQ_BUF_SZ;
 451         if (PF_IS_V11(vf)) {
 452                 caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
 453                        I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ |
 454                        I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
 455                        I40E_VIRTCHNL_VF_OFFLOAD_VLAN |
 456                        I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING;
 457                 args.in_args = (uint8_t *)&caps;
 458                 args.in_args_size = sizeof(caps);
 459         } else {
 460                 args.in_args = NULL;
 461                 args.in_args_size = 0;
 462         }
 463         err = i40evf_execute_vf_cmd(dev, &args);
 464
 465         if (err) {
 466                 PMD_DRV_LOG(ERR, "fail to execute command OP_GET_VF_RESOURCE");
 467                 return err;
 468         }
 469
 470         len =  sizeof(struct i40e_virtchnl_vf_resource) +
 471                 I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource);
 472
 473         (void)rte_memcpy(vf->vf_res, args.out_buffer,
 474                         RTE_MIN(args.out_size, len));
 475         i40e_vf_parse_hw_config(hw, vf->vf_res);
 476
 477         return 0;
 478 }
 479
 480 static int
 481 i40evf_config_promisc(struct rte_eth_dev *dev,
 482                       bool enable_unicast,
 483                       bool enable_multicast)
 484 {
 485         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 486         int err;
 487         struct vf_cmd_info args;
 488         struct i40e_virtchnl_promisc_info promisc;
 489
 490         promisc.flags = 0;
 491         promisc.vsi_id = vf->vsi_res->vsi_id;
 492
 493         if (enable_unicast)
 494                 promisc.flags |= I40E_FLAG_VF_UNICAST_PROMISC;
 495
 496         if (enable_multicast)
 497                 promisc.flags |= I40E_FLAG_VF_MULTICAST_PROMISC;
 498
 499         args.ops = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
 500         args.in_args = (uint8_t *)&promisc;
 501         args.in_args_size = sizeof(promisc);
 502         args.out_buffer = vf->aq_resp;
 503         args.out_size = I40E_AQ_BUF_SZ;
 504
 505         err = i40evf_execute_vf_cmd(dev, &args);
 506
 507         if (err)
 508                 PMD_DRV_LOG(ERR, "fail to execute command "
 509                             "CONFIG_PROMISCUOUS_MODE");
 510         return err;
 511 }
 512
 513 /* Configure vlan and double vlan offload. Use flag to specify which part to configure */
 514 static int
 515 i40evf_config_vlan_offload(struct rte_eth_dev *dev,
 516                                 bool enable_vlan_strip)
 517 {
 518         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 519         int err;
 520         struct vf_cmd_info args;
 521         struct i40e_virtchnl_vlan_offload_info offload;
 522
 523         offload.vsi_id = vf->vsi_res->vsi_id;
 524         offload.enable_vlan_strip = enable_vlan_strip;
 525
 526         args.ops = (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_CFG_VLAN_OFFLOAD;
 527         args.in_args = (uint8_t *)&offload;
 528         args.in_args_size = sizeof(offload);
 529         args.out_buffer = vf->aq_resp;
 530         args.out_size = I40E_AQ_BUF_SZ;
 531
 532         err = i40evf_execute_vf_cmd(dev, &args);
 533         if (err)
 534                 PMD_DRV_LOG(ERR, "fail to execute command CFG_VLAN_OFFLOAD");
 535
 536         return err;
 537 }
 538
 539 static int
 540 i40evf_config_vlan_pvid(struct rte_eth_dev *dev,
 541                                 struct i40e_vsi_vlan_pvid_info *info)
 542 {
 543         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 544         int err;
 545         struct vf_cmd_info args;
 546         struct i40e_virtchnl_pvid_info tpid_info;
 547
 548         if (info == NULL) {
 549                 PMD_DRV_LOG(ERR, "invalid parameters");
 550                 return I40E_ERR_PARAM;
 551         }
 552
 553         memset(&tpid_info, 0, sizeof(tpid_info));
 554         tpid_info.vsi_id = vf->vsi_res->vsi_id;
 555         (void)rte_memcpy(&tpid_info.info, info, sizeof(*info));
 556
 557         args.ops = (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_CFG_VLAN_PVID;
 558         args.in_args = (uint8_t *)&tpid_info;
 559         args.in_args_size = sizeof(tpid_info);
 560         args.out_buffer = vf->aq_resp;
 561         args.out_size = I40E_AQ_BUF_SZ;
 562
 563         err = i40evf_execute_vf_cmd(dev, &args);
 564         if (err)
 565                 PMD_DRV_LOG(ERR, "fail to execute command CFG_VLAN_PVID");
 566
 567         return err;
 568 }
 569
 570 static void
 571 i40evf_fill_virtchnl_vsi_txq_info(struct i40e_virtchnl_txq_info *txq_info,
 572                                   uint16_t vsi_id,
 573                                   uint16_t queue_id,
 574                                   uint16_t nb_txq,
 575                                   struct i40e_tx_queue *txq)
 576 {
 577         txq_info->vsi_id = vsi_id;
 578         txq_info->queue_id = queue_id;
 579         if (queue_id < nb_txq) {
 580                 txq_info->ring_len = txq->nb_tx_desc;
 581                 txq_info->dma_ring_addr = txq->tx_ring_phys_addr;
 582         }
 583 }
 584
 585 static void
 586 i40evf_fill_virtchnl_vsi_rxq_info(struct i40e_virtchnl_rxq_info *rxq_info,
 587                                   uint16_t vsi_id,
 588                                   uint16_t queue_id,
 589                                   uint16_t nb_rxq,
 590                                   uint32_t max_pkt_size,
 591                                   struct i40e_rx_queue *rxq)
 592 {
 593         rxq_info->vsi_id = vsi_id;
 594         rxq_info->queue_id = queue_id;
 595         rxq_info->max_pkt_size = max_pkt_size;
 596         if (queue_id < nb_rxq) {
 597                 rxq_info->ring_len = rxq->nb_rx_desc;
 598                 rxq_info->dma_ring_addr = rxq->rx_ring_phys_addr;
 599                 rxq_info->databuffer_size =
 600                         (rte_pktmbuf_data_room_size(rxq->mp) -
 601                                 RTE_PKTMBUF_HEADROOM);
 602         }
 603 }
 604
 605 /* It configures VSI queues to co-work with Linux PF host */
 606 static int
 607 i40evf_configure_vsi_queues(struct rte_eth_dev *dev)
 608 {
 609         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 610         struct i40e_rx_queue **rxq =
 611                 (struct i40e_rx_queue **)dev->data->rx_queues;
 612         struct i40e_tx_queue **txq =
 613                 (struct i40e_tx_queue **)dev->data->tx_queues;
 614         struct i40e_virtchnl_vsi_queue_config_info *vc_vqci;
 615         struct i40e_virtchnl_queue_pair_info *vc_qpi;
 616         struct vf_cmd_info args;
 617         uint16_t i, nb_qp = vf->num_queue_pairs;
 618         const uint32_t size =
 619                 I40E_VIRTCHNL_CONFIG_VSI_QUEUES_SIZE(vc_vqci, nb_qp);
 620         uint8_t buff[size];
 621         int ret;
 622
 623         memset(buff, 0, sizeof(buff));
 624         vc_vqci = (struct i40e_virtchnl_vsi_queue_config_info *)buff;
 625         vc_vqci->vsi_id = vf->vsi_res->vsi_id;
 626         vc_vqci->num_queue_pairs = nb_qp;
 627
 628         for (i = 0, vc_qpi = vc_vqci->qpair; i < nb_qp; i++, vc_qpi++) {
 629                 i40evf_fill_virtchnl_vsi_txq_info(&vc_qpi->txq,
 630                         vc_vqci->vsi_id, i, dev->data->nb_tx_queues, txq[i]);
 631                 i40evf_fill_virtchnl_vsi_rxq_info(&vc_qpi->rxq,
 632                         vc_vqci->vsi_id, i, dev->data->nb_rx_queues,
 633                                         vf->max_pkt_len, rxq[i]);
 634         }
 635         memset(&args, 0, sizeof(args));
 636         args.ops = I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES;
 637         args.in_args = (uint8_t *)vc_vqci;
 638         args.in_args_size = size;
 639         args.out_buffer = vf->aq_resp;
 640         args.out_size = I40E_AQ_BUF_SZ;
 641         ret = i40evf_execute_vf_cmd(dev, &args);
 642         if (ret)
 643                 PMD_DRV_LOG(ERR, "Failed to execute command of "
 644                         "I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES\n");
 645
 646         return ret;
 647 }
 648
 649 /* It configures VSI queues to co-work with DPDK PF host */
 650 static int
 651 i40evf_configure_vsi_queues_ext(struct rte_eth_dev *dev)
 652 {
 653         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 654         struct i40e_rx_queue **rxq =
 655                 (struct i40e_rx_queue **)dev->data->rx_queues;
 656         struct i40e_tx_queue **txq =
 657                 (struct i40e_tx_queue **)dev->data->tx_queues;
 658         struct i40e_virtchnl_vsi_queue_config_ext_info *vc_vqcei;
 659         struct i40e_virtchnl_queue_pair_ext_info *vc_qpei;
 660         struct vf_cmd_info args;
 661         uint16_t i, nb_qp = vf->num_queue_pairs;
 662         const uint32_t size =
 663                 I40E_VIRTCHNL_CONFIG_VSI_QUEUES_SIZE(vc_vqcei, nb_qp);
 664         uint8_t buff[size];
 665         int ret;
 666
 667         memset(buff, 0, sizeof(buff));
 668         vc_vqcei = (struct i40e_virtchnl_vsi_queue_config_ext_info *)buff;
 669         vc_vqcei->vsi_id = vf->vsi_res->vsi_id;
 670         vc_vqcei->num_queue_pairs = nb_qp;
 671         vc_qpei = vc_vqcei->qpair;
 672         for (i = 0; i < nb_qp; i++, vc_qpei++) {
 673                 i40evf_fill_virtchnl_vsi_txq_info(&vc_qpei->txq,
 674                         vc_vqcei->vsi_id, i, dev->data->nb_tx_queues, txq[i]);
 675                 i40evf_fill_virtchnl_vsi_rxq_info(&vc_qpei->rxq,
 676                         vc_vqcei->vsi_id, i, dev->data->nb_rx_queues,
 677                                         vf->max_pkt_len, rxq[i]);
 678                 if (i < dev->data->nb_rx_queues)
 679                         /*
 680                          * It adds extra info for configuring VSI queues, which
 681                          * is needed to enable the configurable crc stripping
 682                          * in VF.
 683                          */
 684                         vc_qpei->rxq_ext.crcstrip =
 685                                 dev->data->dev_conf.rxmode.hw_strip_crc;
 686         }
 687         memset(&args, 0, sizeof(args));
 688         args.ops =
 689                 (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EXT;
 690         args.in_args = (uint8_t *)vc_vqcei;
 691         args.in_args_size = size;
 692         args.out_buffer = vf->aq_resp;
 693         args.out_size = I40E_AQ_BUF_SZ;
 694         ret = i40evf_execute_vf_cmd(dev, &args);
 695         if (ret)
 696                 PMD_DRV_LOG(ERR, "Failed to execute command of "
 697                         "I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EXT\n");
 698
 699         return ret;
 700 }
 701
 702 static int
 703 i40evf_configure_queues(struct rte_eth_dev *dev)
 704 {
 705         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 706
 707         if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
 708                 /* To support DPDK PF host */
 709                 return i40evf_configure_vsi_queues_ext(dev);
 710         else
 711                 /* To support Linux PF host */
 712                 return i40evf_configure_vsi_queues(dev);
 713 }
 714
 715 static int
 716 i40evf_config_irq_map(struct rte_eth_dev *dev)
 717 {
 718         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 719         struct vf_cmd_info args;
 720         uint8_t cmd_buffer[sizeof(struct i40e_virtchnl_irq_map_info) + \
 721                 sizeof(struct i40e_virtchnl_vector_map)];
 722         struct i40e_virtchnl_irq_map_info *map_info;
 723         struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
 724         uint32_t vector_id;
 725         int i, err;
 726
 727         if (rte_intr_allow_others(intr_handle)) {
 728                 if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
 729                         vector_id = I40EVF_VSI_DEFAULT_MSIX_INTR;
 730                 else
 731                         vector_id = I40EVF_VSI_DEFAULT_MSIX_INTR_LNX;
 732         } else {
 733                 vector_id = I40E_MISC_VEC_ID;
 734         }
 735
 736         map_info = (struct i40e_virtchnl_irq_map_info *)cmd_buffer;
 737         map_info->num_vectors = 1;
 738         map_info->vecmap[0].rxitr_idx = I40E_ITR_INDEX_DEFAULT;
 739         map_info->vecmap[0].vsi_id = vf->vsi_res->vsi_id;
 740         /* Alway use default dynamic MSIX interrupt */
 741         map_info->vecmap[0].vector_id = vector_id;
 742         /* Don't map any tx queue */
 743         map_info->vecmap[0].txq_map = 0;
 744         map_info->vecmap[0].rxq_map = 0;
 745         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 746                 map_info->vecmap[0].rxq_map |= 1 << i;
 747                 if (rte_intr_dp_is_en(intr_handle))
 748                         intr_handle->intr_vec[i] = vector_id;
 749         }
 750
 751         args.ops = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP;
 752         args.in_args = (u8 *)cmd_buffer;
 753         args.in_args_size = sizeof(cmd_buffer);
 754         args.out_buffer = vf->aq_resp;
 755         args.out_size = I40E_AQ_BUF_SZ;
 756         err = i40evf_execute_vf_cmd(dev, &args);
 757         if (err)
 758                 PMD_DRV_LOG(ERR, "fail to execute command OP_ENABLE_QUEUES");
 759
 760         return err;
 761 }
 762
 763 static int
 764 i40evf_switch_queue(struct rte_eth_dev *dev, bool isrx, uint16_t qid,
 765                                 bool on)
 766 {
 767         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 768         struct i40e_virtchnl_queue_select queue_select;
 769         int err;
 770         struct vf_cmd_info args;
 771         memset(&queue_select, 0, sizeof(queue_select));
 772         queue_select.vsi_id = vf->vsi_res->vsi_id;
 773
 774         if (isrx)
 775                 queue_select.rx_queues |= 1 << qid;
 776         else
 777                 queue_select.tx_queues |= 1 << qid;
 778
 779         if (on)
 780                 args.ops = I40E_VIRTCHNL_OP_ENABLE_QUEUES;
 781         else
 782                 args.ops = I40E_VIRTCHNL_OP_DISABLE_QUEUES;
 783         args.in_args = (u8 *)&queue_select;
 784         args.in_args_size = sizeof(queue_select);
 785         args.out_buffer = vf->aq_resp;
 786         args.out_size = I40E_AQ_BUF_SZ;
 787         err = i40evf_execute_vf_cmd(dev, &args);
 788         if (err)
 789                 PMD_DRV_LOG(ERR, "fail to switch %s %u %s",
 790                             isrx ? "RX" : "TX", qid, on ? "on" : "off");
 791
 792         return err;
 793 }
 794
 795 static int
 796 i40evf_start_queues(struct rte_eth_dev *dev)
 797 {
 798         struct rte_eth_dev_data *dev_data = dev->data;
 799         int i;
 800         struct i40e_rx_queue *rxq;
 801         struct i40e_tx_queue *txq;
 802
 803         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 804                 rxq = dev_data->rx_queues[i];
 805                 if (rxq->rx_deferred_start)
 806                         continue;
 807                 if (i40evf_dev_rx_queue_start(dev, i) != 0) {
 808                         PMD_DRV_LOG(ERR, "Fail to start queue %u", i);
 809                         return -1;
 810                 }
 811         }
 812
 813         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 814                 txq = dev_data->tx_queues[i];
 815                 if (txq->tx_deferred_start)
 816                         continue;
 817                 if (i40evf_dev_tx_queue_start(dev, i) != 0) {
 818                         PMD_DRV_LOG(ERR, "Fail to start queue %u", i);
 819                         return -1;
 820                 }
 821         }
 822
 823         return 0;
 824 }
 825
 826 static int
 827 i40evf_stop_queues(struct rte_eth_dev *dev)
 828 {
 829         int i;
 830
 831         /* Stop TX queues first */
 832         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 833                 if (i40evf_dev_tx_queue_stop(dev, i) != 0) {
 834                         PMD_DRV_LOG(ERR, "Fail to stop queue %u", i);
 835                         return -1;
 836                 }
 837         }
 838
 839         /* Then stop RX queues */
 840         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 841                 if (i40evf_dev_rx_queue_stop(dev, i) != 0) {
 842                         PMD_DRV_LOG(ERR, "Fail to stop queue %u", i);
 843                         return -1;
 844                 }
 845         }
 846
 847         return 0;
 848 }
 849
 850 static void
 851 i40evf_add_mac_addr(struct rte_eth_dev *dev,
 852                     struct ether_addr *addr,
 853                     __rte_unused uint32_t index,
 854                     __rte_unused uint32_t pool)
 855 {
 856         struct i40e_virtchnl_ether_addr_list *list;
 857         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 858         uint8_t cmd_buffer[sizeof(struct i40e_virtchnl_ether_addr_list) + \
 859                         sizeof(struct i40e_virtchnl_ether_addr)];
 860         int err;
 861         struct vf_cmd_info args;
 862
 863         if (i40e_validate_mac_addr(addr->addr_bytes) != I40E_SUCCESS) {
 864                 PMD_DRV_LOG(ERR, "Invalid mac:%x:%x:%x:%x:%x:%x",
 865                             addr->addr_bytes[0], addr->addr_bytes[1],
 866                             addr->addr_bytes[2], addr->addr_bytes[3],
 867                             addr->addr_bytes[4], addr->addr_bytes[5]);
 868                 return;
 869         }
 870
 871         list = (struct i40e_virtchnl_ether_addr_list *)cmd_buffer;
 872         list->vsi_id = vf->vsi_res->vsi_id;
 873         list->num_elements = 1;
 874         (void)rte_memcpy(list->list[0].addr, addr->addr_bytes,
 875                                         sizeof(addr->addr_bytes));
 876
 877         args.ops = I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS;
 878         args.in_args = cmd_buffer;
 879         args.in_args_size = sizeof(cmd_buffer);
 880         args.out_buffer = vf->aq_resp;
 881         args.out_size = I40E_AQ_BUF_SZ;
 882         err = i40evf_execute_vf_cmd(dev, &args);
 883         if (err)
 884                 PMD_DRV_LOG(ERR, "fail to execute command "
 885                             "OP_ADD_ETHER_ADDRESS");
 886
 887         return;
 888 }
 889
 890 static void
 891 i40evf_del_mac_addr(struct rte_eth_dev *dev, uint32_t index)
 892 {
 893         struct i40e_virtchnl_ether_addr_list *list;
 894         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 895         struct rte_eth_dev_data *data = dev->data;
 896         struct ether_addr *addr;
 897         uint8_t cmd_buffer[sizeof(struct i40e_virtchnl_ether_addr_list) + \
 898                         sizeof(struct i40e_virtchnl_ether_addr)];
 899         int err;
 900         struct vf_cmd_info args;
 901
 902         addr = &(data->mac_addrs[index]);
 903
 904         if (i40e_validate_mac_addr(addr->addr_bytes) != I40E_SUCCESS) {
 905                 PMD_DRV_LOG(ERR, "Invalid mac:%x-%x-%x-%x-%x-%x",
 906                             addr->addr_bytes[0], addr->addr_bytes[1],
 907                             addr->addr_bytes[2], addr->addr_bytes[3],
 908                             addr->addr_bytes[4], addr->addr_bytes[5]);
 909                 return;
 910         }
 911
 912         list = (struct i40e_virtchnl_ether_addr_list *)cmd_buffer;
 913         list->vsi_id = vf->vsi_res->vsi_id;
 914         list->num_elements = 1;
 915         (void)rte_memcpy(list->list[0].addr, addr->addr_bytes,
 916                         sizeof(addr->addr_bytes));
 917
 918         args.ops = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS;
 919         args.in_args = cmd_buffer;
 920         args.in_args_size = sizeof(cmd_buffer);
 921         args.out_buffer = vf->aq_resp;
 922         args.out_size = I40E_AQ_BUF_SZ;
 923         err = i40evf_execute_vf_cmd(dev, &args);
 924         if (err)
 925                 PMD_DRV_LOG(ERR, "fail to execute command "
 926                             "OP_DEL_ETHER_ADDRESS");
 927         return;
 928 }
 929
 930 static int
 931 i40evf_update_stats(struct rte_eth_dev *dev, struct i40e_eth_stats **pstats)
 932 {
 933         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 934         struct i40e_virtchnl_queue_select q_stats;
 935         int err;
 936         struct vf_cmd_info args;
 937
 938         memset(&q_stats, 0, sizeof(q_stats));
 939         q_stats.vsi_id = vf->vsi_res->vsi_id;
 940         args.ops = I40E_VIRTCHNL_OP_GET_STATS;
 941         args.in_args = (u8 *)&q_stats;
 942         args.in_args_size = sizeof(q_stats);
 943         args.out_buffer = vf->aq_resp;
 944         args.out_size = I40E_AQ_BUF_SZ;
 945
 946         err = i40evf_execute_vf_cmd(dev, &args);
 947         if (err) {
 948                 PMD_DRV_LOG(ERR, "fail to execute command OP_GET_STATS");
 949                 *pstats = NULL;
 950                 return err;
 951         }
 952         *pstats = (struct i40e_eth_stats *)args.out_buffer;
 953         return 0;
 954 }
 955
 956 static int
 957 i40evf_get_statics(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 958 {
 959         int ret;
 960         struct i40e_eth_stats *pstats = NULL;
 961
 962         ret = i40evf_update_stats(dev, &pstats);
 963         if (ret != 0)
 964                 return 0;
 965
 966         stats->ipackets = pstats->rx_unicast + pstats->rx_multicast +
 967                                                 pstats->rx_broadcast;
 968         stats->opackets = pstats->tx_broadcast + pstats->tx_multicast +
 969                                                 pstats->tx_unicast;
 970         stats->ierrors = pstats->rx_discards;
 971         stats->oerrors = pstats->tx_errors + pstats->tx_discards;
 972         stats->ibytes = pstats->rx_bytes;
 973         stats->obytes = pstats->tx_bytes;
 974
 975         return 0;
 976 }
 977
 978 static void
 979 i40evf_dev_xstats_reset(struct rte_eth_dev *dev)
 980 {
 981         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
 982         struct i40e_eth_stats *pstats = NULL;
 983
 984         /* read stat values to clear hardware registers */
 985         i40evf_update_stats(dev, &pstats);
 986
 987         /* set stats offset base on current values */
 988         vf->vsi.eth_stats_offset = vf->vsi.eth_stats;
 989 }
 990
 991 static int i40evf_dev_xstats_get_names(__rte_unused struct rte_eth_dev *dev,
 992                                       struct rte_eth_xstat_name *xstats_names,
 993                                       __rte_unused unsigned limit)
 994 {
 995         unsigned i;
 996
 997         if (xstats_names != NULL)
 998                 for (i = 0; i < I40EVF_NB_XSTATS; i++) {
 999                         snprintf(xstats_names[i].name,
1000                                 sizeof(xstats_names[i].name),
1001                                 "%s", rte_i40evf_stats_strings[i].name);
1002                 }
1003         return I40EVF_NB_XSTATS;
1004 }
1005
1006 static int i40evf_dev_xstats_get(struct rte_eth_dev *dev,
1007                                  struct rte_eth_xstat *xstats, unsigned n)
1008 {
1009         int ret;
1010         unsigned i;
1011         struct i40e_eth_stats *pstats = NULL;
1012
1013         if (n < I40EVF_NB_XSTATS)
1014                 return I40EVF_NB_XSTATS;
1015
1016         ret = i40evf_update_stats(dev, &pstats);
1017         if (ret != 0)
1018                 return 0;
1019
1020         if (!xstats)
1021                 return 0;
1022
1023         /* loop over xstats array and values from pstats */
1024         for (i = 0; i < I40EVF_NB_XSTATS; i++) {
1025                 xstats[i].id = i;
1026                 xstats[i].value = *(uint64_t *)(((char *)pstats) +
1027                         rte_i40evf_stats_strings[i].offset);
1028         }
1029
1030         return I40EVF_NB_XSTATS;
1031 }
1032
1033 static int
1034 i40evf_add_vlan(struct rte_eth_dev *dev, uint16_t vlanid)
1035 {
1036         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1037         struct i40e_virtchnl_vlan_filter_list *vlan_list;
1038         uint8_t cmd_buffer[sizeof(struct i40e_virtchnl_vlan_filter_list) +
1039                                                         sizeof(uint16_t)];
1040         int err;
1041         struct vf_cmd_info args;
1042
1043         vlan_list = (struct i40e_virtchnl_vlan_filter_list *)cmd_buffer;
1044         vlan_list->vsi_id = vf->vsi_res->vsi_id;
1045         vlan_list->num_elements = 1;
1046         vlan_list->vlan_id[0] = vlanid;
1047
1048         args.ops = I40E_VIRTCHNL_OP_ADD_VLAN;
1049         args.in_args = (u8 *)&cmd_buffer;
1050         args.in_args_size = sizeof(cmd_buffer);
1051         args.out_buffer = vf->aq_resp;
1052         args.out_size = I40E_AQ_BUF_SZ;
1053         err = i40evf_execute_vf_cmd(dev, &args);
1054         if (err)
1055                 PMD_DRV_LOG(ERR, "fail to execute command OP_ADD_VLAN");
1056
1057         return err;
1058 }
1059
1060 static int
1061 i40evf_del_vlan(struct rte_eth_dev *dev, uint16_t vlanid)
1062 {
1063         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1064         struct i40e_virtchnl_vlan_filter_list *vlan_list;
1065         uint8_t cmd_buffer[sizeof(struct i40e_virtchnl_vlan_filter_list) +
1066                                                         sizeof(uint16_t)];
1067         int err;
1068         struct vf_cmd_info args;
1069
1070         vlan_list = (struct i40e_virtchnl_vlan_filter_list *)cmd_buffer;
1071         vlan_list->vsi_id = vf->vsi_res->vsi_id;
1072         vlan_list->num_elements = 1;
1073         vlan_list->vlan_id[0] = vlanid;
1074
1075         args.ops = I40E_VIRTCHNL_OP_DEL_VLAN;
1076         args.in_args = (u8 *)&cmd_buffer;
1077         args.in_args_size = sizeof(cmd_buffer);
1078         args.out_buffer = vf->aq_resp;
1079         args.out_size = I40E_AQ_BUF_SZ;
1080         err = i40evf_execute_vf_cmd(dev, &args);
1081         if (err)
1082                 PMD_DRV_LOG(ERR, "fail to execute command OP_DEL_VLAN");
1083
1084         return err;
1085 }
1086
1087 static int
1088 i40evf_get_link_status(struct rte_eth_dev *dev, struct rte_eth_link *link)
1089 {
1090         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1091         int err;
1092         struct vf_cmd_info args;
1093         struct rte_eth_link *new_link;
1094
1095         args.ops = (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_GET_LINK_STAT;
1096         args.in_args = NULL;
1097         args.in_args_size = 0;
1098         args.out_buffer = vf->aq_resp;
1099         args.out_size = I40E_AQ_BUF_SZ;
1100         err = i40evf_execute_vf_cmd(dev, &args);
1101         if (err) {
1102                 PMD_DRV_LOG(ERR, "fail to execute command OP_GET_LINK_STAT");
1103                 return err;
1104         }
1105
1106         new_link = (struct rte_eth_link *)args.out_buffer;
1107         (void)rte_memcpy(link, new_link, sizeof(*link));
1108
1109         return 0;
1110 }
1111
1112 static const struct rte_pci_id pci_id_i40evf_map[] = {
1113 #define RTE_PCI_DEV_ID_DECL_I40EVF(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
1114 #include "rte_pci_dev_ids.h"
1115 { .vendor_id = 0, /* sentinel */ },
1116 };
1117
1118 static inline int
1119 i40evf_dev_atomic_write_link_status(struct rte_eth_dev *dev,
1120                                     struct rte_eth_link *link)
1121 {
1122         struct rte_eth_link *dst = &(dev->data->dev_link);
1123         struct rte_eth_link *src = link;
1124
1125         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
1126                                         *(uint64_t *)src) == 0)
1127                 return -1;
1128
1129         return 0;
1130 }
1131
1132 /* Disable IRQ0 */
1133 static inline void
1134 i40evf_disable_irq0(struct i40e_hw *hw)
1135 {
1136         /* Disable all interrupt types */
1137         I40E_WRITE_REG(hw, I40E_VFINT_ICR0_ENA1, 0);
1138         I40E_WRITE_REG(hw, I40E_VFINT_DYN_CTL01,
1139                        I40E_VFINT_DYN_CTL01_ITR_INDX_MASK);
1140         I40EVF_WRITE_FLUSH(hw);
1141 }
1142
1143 /* Enable IRQ0 */
1144 static inline void
1145 i40evf_enable_irq0(struct i40e_hw *hw)
1146 {
1147         /* Enable admin queue interrupt trigger */
1148         uint32_t val;
1149
1150         i40evf_disable_irq0(hw);
1151         val = I40E_READ_REG(hw, I40E_VFINT_ICR0_ENA1);
1152         val |= I40E_VFINT_ICR0_ENA1_ADMINQ_MASK |
1153                 I40E_VFINT_ICR0_ENA1_LINK_STAT_CHANGE_MASK;
1154         I40E_WRITE_REG(hw, I40E_VFINT_ICR0_ENA1, val);
1155
1156         I40E_WRITE_REG(hw, I40E_VFINT_DYN_CTL01,
1157                 I40E_VFINT_DYN_CTL01_INTENA_MASK |
1158                 I40E_VFINT_DYN_CTL01_CLEARPBA_MASK |
1159                 I40E_VFINT_DYN_CTL01_ITR_INDX_MASK);
1160
1161         I40EVF_WRITE_FLUSH(hw);
1162 }
1163
1164 static int
1165 i40evf_reset_vf(struct i40e_hw *hw)
1166 {
1167         int i, reset;
1168
1169         if (i40e_vf_reset(hw) != I40E_SUCCESS) {
1170                 PMD_INIT_LOG(ERR, "Reset VF NIC failed");
1171                 return -1;
1172         }
1173         /**
1174           * After issuing vf reset command to pf, pf won't necessarily
1175           * reset vf, it depends on what state it exactly is. If it's not
1176           * initialized yet, it won't have vf reset since it's in a certain
1177           * state. If not, it will try to reset. Even vf is reset, pf will
1178           * set I40E_VFGEN_RSTAT to COMPLETE first, then wait 10ms and set
1179           * it to ACTIVE. In this duration, vf may not catch the moment that
1180           * COMPLETE is set. So, for vf, we'll try to wait a long time.
1181           */
1182         rte_delay_ms(200);
1183
1184         for (i = 0; i < MAX_RESET_WAIT_CNT; i++) {
1185                 reset = rd32(hw, I40E_VFGEN_RSTAT) &
1186                         I40E_VFGEN_RSTAT_VFR_STATE_MASK;
1187                 reset = reset >> I40E_VFGEN_RSTAT_VFR_STATE_SHIFT;
1188                 if (I40E_VFR_COMPLETED == reset || I40E_VFR_VFACTIVE == reset)
1189                         break;
1190                 else
1191                         rte_delay_ms(50);
1192         }
1193
1194         if (i >= MAX_RESET_WAIT_CNT) {
1195                 PMD_INIT_LOG(ERR, "Reset VF NIC failed");
1196                 return -1;
1197         }
1198
1199         return 0;
1200 }
1201
1202 static int
1203 i40evf_init_vf(struct rte_eth_dev *dev)
1204 {
1205         int i, err, bufsz;
1206         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1207         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1208         struct ether_addr *p_mac_addr;
1209         uint16_t interval =
1210                 i40e_calc_itr_interval(I40E_QUEUE_ITR_INTERVAL_MAX);
1211
1212         vf->adapter = I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
1213         vf->dev_data = dev->data;
1214         err = i40e_set_mac_type(hw);
1215         if (err) {
1216                 PMD_INIT_LOG(ERR, "set_mac_type failed: %d", err);
1217                 goto err;
1218         }
1219
1220         i40e_init_adminq_parameter(hw);
1221         err = i40e_init_adminq(hw);
1222         if (err) {
1223                 PMD_INIT_LOG(ERR, "init_adminq failed: %d", err);
1224                 goto err;
1225         }
1226
1227         /* Reset VF and wait until it's complete */
1228         if (i40evf_reset_vf(hw)) {
1229                 PMD_INIT_LOG(ERR, "reset NIC failed");
1230                 goto err_aq;
1231         }
1232
1233         /* VF reset, shutdown admin queue and initialize again */
1234         if (i40e_shutdown_adminq(hw) != I40E_SUCCESS) {
1235                 PMD_INIT_LOG(ERR, "i40e_shutdown_adminq failed");
1236                 return -1;
1237         }
1238
1239         i40e_init_adminq_parameter(hw);
1240         if (i40e_init_adminq(hw) != I40E_SUCCESS) {
1241                 PMD_INIT_LOG(ERR, "init_adminq failed");
1242                 return -1;
1243         }
1244         vf->aq_resp = rte_zmalloc("vf_aq_resp", I40E_AQ_BUF_SZ, 0);
1245         if (!vf->aq_resp) {
1246                 PMD_INIT_LOG(ERR, "unable to allocate vf_aq_resp memory");
1247                         goto err_aq;
1248         }
1249         if (i40evf_check_api_version(dev) != 0) {
1250                 PMD_INIT_LOG(ERR, "check_api version failed");
1251                 goto err_aq;
1252         }
1253         bufsz = sizeof(struct i40e_virtchnl_vf_resource) +
1254                 (I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource));
1255         vf->vf_res = rte_zmalloc("vf_res", bufsz, 0);
1256         if (!vf->vf_res) {
1257                 PMD_INIT_LOG(ERR, "unable to allocate vf_res memory");
1258                         goto err_aq;
1259         }
1260
1261         if (i40evf_get_vf_resource(dev) != 0) {
1262                 PMD_INIT_LOG(ERR, "i40evf_get_vf_config failed");
1263                 goto err_alloc;
1264         }
1265
1266         /* got VF config message back from PF, now we can parse it */
1267         for (i = 0; i < vf->vf_res->num_vsis; i++) {
1268                 if (vf->vf_res->vsi_res[i].vsi_type == I40E_VSI_SRIOV)
1269                         vf->vsi_res = &vf->vf_res->vsi_res[i];
1270         }
1271
1272         if (!vf->vsi_res) {
1273                 PMD_INIT_LOG(ERR, "no LAN VSI found");
1274                 goto err_alloc;
1275         }
1276
1277         if (hw->mac.type == I40E_MAC_X722_VF)
1278                 vf->flags = I40E_FLAG_RSS_AQ_CAPABLE;
1279         vf->vsi.vsi_id = vf->vsi_res->vsi_id;
1280         vf->vsi.type = vf->vsi_res->vsi_type;
1281         vf->vsi.nb_qps = vf->vsi_res->num_queue_pairs;
1282         vf->vsi.adapter = I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
1283
1284         /* Store the MAC address configured by host, or generate random one */
1285         p_mac_addr = (struct ether_addr *)(vf->vsi_res->default_mac_addr);
1286         if (is_valid_assigned_ether_addr(p_mac_addr)) /* Configured by host */
1287                 ether_addr_copy(p_mac_addr, (struct ether_addr *)hw->mac.addr);
1288         else
1289                 eth_random_addr(hw->mac.addr); /* Generate a random one */
1290
1291         /* If the PF host is not DPDK, set the interval of ITR0 to max*/
1292         if (vf->version_major != I40E_DPDK_VERSION_MAJOR) {
1293                 I40E_WRITE_REG(hw, I40E_VFINT_DYN_CTL01,
1294                                (I40E_ITR_INDEX_DEFAULT <<
1295                                 I40E_VFINT_DYN_CTL0_ITR_INDX_SHIFT) |
1296                                (interval <<
1297                                 I40E_VFINT_DYN_CTL0_INTERVAL_SHIFT));
1298                 I40EVF_WRITE_FLUSH(hw);
1299         }
1300
1301         return 0;
1302
1303 err_alloc:
1304         rte_free(vf->vf_res);
1305 err_aq:
1306         i40e_shutdown_adminq(hw); /* ignore error */
1307 err:
1308         return -1;
1309 }
1310
1311 static int
1312 i40evf_uninit_vf(struct rte_eth_dev *dev)
1313 {
1314         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1315         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1316
1317         PMD_INIT_FUNC_TRACE();
1318
1319         if (hw->adapter_stopped == 0)
1320                 i40evf_dev_close(dev);
1321         rte_free(vf->vf_res);
1322         vf->vf_res = NULL;
1323         rte_free(vf->aq_resp);
1324         vf->aq_resp = NULL;
1325
1326         return 0;
1327 }
1328
1329 static void
1330 i40evf_handle_pf_event(__rte_unused struct rte_eth_dev *dev,
1331                            uint8_t *msg,
1332                            __rte_unused uint16_t msglen)
1333 {
1334         struct i40e_virtchnl_pf_event *pf_msg =
1335                         (struct i40e_virtchnl_pf_event *)msg;
1336         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1337
1338         switch (pf_msg->event) {
1339         case I40E_VIRTCHNL_EVENT_RESET_IMPENDING:
1340                 PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_RESET_IMPENDING event\n");
1341                 _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_RESET);
1342                 break;
1343         case I40E_VIRTCHNL_EVENT_LINK_CHANGE:
1344                 PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_LINK_CHANGE event\n");
1345                 vf->link_up = pf_msg->event_data.link_event.link_status;
1346                 vf->link_speed = pf_msg->event_data.link_event.link_speed;
1347                 break;
1348         case I40E_VIRTCHNL_EVENT_PF_DRIVER_CLOSE:
1349                 PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_PF_DRIVER_CLOSE event\n");
1350                 break;
1351         default:
1352                 PMD_DRV_LOG(ERR, " unknown event received %u", pf_msg->event);
1353                 break;
1354         }
1355 }
1356
1357 static void
1358 i40evf_handle_aq_msg(struct rte_eth_dev *dev)
1359 {
1360         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1361         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1362         struct i40e_arq_event_info info;
1363         struct i40e_virtchnl_msg *v_msg;
1364         uint16_t pending, opcode;
1365         int ret;
1366
1367         info.buf_len = I40E_AQ_BUF_SZ;
1368         if (!vf->aq_resp) {
1369                 PMD_DRV_LOG(ERR, "Buffer for adminq resp should not be NULL");
1370                 return;
1371         }
1372         info.msg_buf = vf->aq_resp;
1373         v_msg = (struct i40e_virtchnl_msg *)&info.desc;
1374
1375         pending = 1;
1376         while (pending) {
1377                 ret = i40e_clean_arq_element(hw, &info, &pending);
1378
1379                 if (ret != I40E_SUCCESS) {
1380                         PMD_DRV_LOG(INFO, "Failed to read msg from AdminQ,"
1381                                     "ret: %d", ret);
1382                         break;
1383                 }
1384                 opcode = rte_le_to_cpu_16(info.desc.opcode);
1385
1386                 switch (opcode) {
1387                 case i40e_aqc_opc_send_msg_to_vf:
1388                         if (v_msg->v_opcode == I40E_VIRTCHNL_OP_EVENT)
1389                                 /* process event*/
1390                                 i40evf_handle_pf_event(dev, info.msg_buf,
1391                                                        info.msg_len);
1392                         else {
1393                                 /* read message and it's expected one */
1394                                 if (v_msg->v_opcode == vf->pend_cmd) {
1395                                         vf->cmd_retval = v_msg->v_retval;
1396                                         /* prevent compiler reordering */
1397                                         rte_compiler_barrier();
1398                                         _clear_cmd(vf);
1399                                 } else
1400                                         PMD_DRV_LOG(ERR, "command mismatch,"
1401                                                 "expect %u, get %u",
1402                                                 vf->pend_cmd, v_msg->v_opcode);
1403                                 PMD_DRV_LOG(DEBUG, "adminq response is received,"
1404                                              " opcode = %d\n", v_msg->v_opcode);
1405                         }
1406                         break;
1407                 default:
1408                         PMD_DRV_LOG(ERR, "Request %u is not supported yet",
1409                                     opcode);
1410                         break;
1411                 }
1412         }
1413 }
1414
1415 /**
1416  * Interrupt handler triggered by NIC  for handling
1417  * specific interrupt. Only adminq interrupt is processed in VF.
1418  *
1419  * @param handle
1420  *  Pointer to interrupt handle.
1421  * @param param
1422  *  The address of parameter (struct rte_eth_dev *) regsitered before.
1423  *
1424  * @return
1425  *  void
1426  */
1427 static void
1428 i40evf_dev_interrupt_handler(__rte_unused struct rte_intr_handle *handle,
1429                              void *param)
1430 {
1431         struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
1432         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1433         uint32_t icr0;
1434
1435         i40evf_disable_irq0(hw);
1436
1437         /* read out interrupt causes */
1438         icr0 = I40E_READ_REG(hw, I40E_VFINT_ICR01);
1439
1440         /* No interrupt event indicated */
1441         if (!(icr0 & I40E_VFINT_ICR01_INTEVENT_MASK)) {
1442                 PMD_DRV_LOG(DEBUG, "No interrupt event, nothing to do\n");
1443                 goto done;
1444         }
1445
1446         if (icr0 & I40E_VFINT_ICR01_ADMINQ_MASK) {
1447                 PMD_DRV_LOG(DEBUG, "ICR01_ADMINQ is reported\n");
1448                 i40evf_handle_aq_msg(dev);
1449         }
1450
1451         /* Link Status Change interrupt */
1452         if (icr0 & I40E_VFINT_ICR01_LINK_STAT_CHANGE_MASK)
1453                 PMD_DRV_LOG(DEBUG, "LINK_STAT_CHANGE is reported,"
1454                                    " do nothing\n");
1455
1456 done:
1457         i40evf_enable_irq0(hw);
1458         rte_intr_enable(&dev->pci_dev->intr_handle);
1459 }
1460
1461 static int
1462 i40evf_dev_init(struct rte_eth_dev *eth_dev)
1463 {
1464         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(\
1465                         eth_dev->data->dev_private);
1466         struct rte_pci_device *pci_dev = eth_dev->pci_dev;
1467
1468         PMD_INIT_FUNC_TRACE();
1469
1470         /* assign ops func pointer */
1471         eth_dev->dev_ops = &i40evf_eth_dev_ops;
1472         eth_dev->rx_pkt_burst = &i40e_recv_pkts;
1473         eth_dev->tx_pkt_burst = &i40e_xmit_pkts;
1474
1475         /*
1476          * For secondary processes, we don't initialise any further as primary
1477          * has already done this work.
1478          */
1479         if (rte_eal_process_type() != RTE_PROC_PRIMARY){
1480                 i40e_set_rx_function(eth_dev);
1481                 i40e_set_tx_function(eth_dev);
1482                 return 0;
1483         }
1484
1485         rte_eth_copy_pci_info(eth_dev, eth_dev->pci_dev);
1486
1487         hw->vendor_id = eth_dev->pci_dev->id.vendor_id;
1488         hw->device_id = eth_dev->pci_dev->id.device_id;
1489         hw->subsystem_vendor_id = eth_dev->pci_dev->id.subsystem_vendor_id;
1490         hw->subsystem_device_id = eth_dev->pci_dev->id.subsystem_device_id;
1491         hw->bus.device = eth_dev->pci_dev->addr.devid;
1492         hw->bus.func = eth_dev->pci_dev->addr.function;
1493         hw->hw_addr = (void *)eth_dev->pci_dev->mem_resource[0].addr;
1494         hw->adapter_stopped = 0;
1495
1496         if(i40evf_init_vf(eth_dev) != 0) {
1497                 PMD_INIT_LOG(ERR, "Init vf failed");
1498                 return -1;
1499         }
1500
1501         /* register callback func to eal lib */
1502         rte_intr_callback_register(&pci_dev->intr_handle,
1503                 i40evf_dev_interrupt_handler, (void *)eth_dev);
1504
1505         /* enable uio intr after callback register */
1506         rte_intr_enable(&pci_dev->intr_handle);
1507
1508         /* configure and enable device interrupt */
1509         i40evf_enable_irq0(hw);
1510
1511         /* copy mac addr */
1512         eth_dev->data->mac_addrs = rte_zmalloc("i40evf_mac",
1513                                         ETHER_ADDR_LEN * I40E_NUM_MACADDR_MAX,
1514                                         0);
1515         if (eth_dev->data->mac_addrs == NULL) {
1516                 PMD_INIT_LOG(ERR, "Failed to allocate %d bytes needed to"
1517                                 " store MAC addresses",
1518                                 ETHER_ADDR_LEN * I40E_NUM_MACADDR_MAX);
1519                 return -ENOMEM;
1520         }
1521         ether_addr_copy((struct ether_addr *)hw->mac.addr,
1522                         &eth_dev->data->mac_addrs[0]);
1523
1524         return 0;
1525 }
1526
1527 static int
1528 i40evf_dev_uninit(struct rte_eth_dev *eth_dev)
1529 {
1530         PMD_INIT_FUNC_TRACE();
1531
1532         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1533                 return -EPERM;
1534
1535         eth_dev->dev_ops = NULL;
1536         eth_dev->rx_pkt_burst = NULL;
1537         eth_dev->tx_pkt_burst = NULL;
1538
1539         if (i40evf_uninit_vf(eth_dev) != 0) {
1540                 PMD_INIT_LOG(ERR, "i40evf_uninit_vf failed");
1541                 return -1;
1542         }
1543
1544         rte_free(eth_dev->data->mac_addrs);
1545         eth_dev->data->mac_addrs = NULL;
1546
1547         return 0;
1548 }
1549 /*
1550  * virtual function driver struct
1551  */
1552 static struct eth_driver rte_i40evf_pmd = {
1553         .pci_drv = {
1554                 .name = "rte_i40evf_pmd",
1555                 .id_table = pci_id_i40evf_map,
1556                 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_DETACHABLE,
1557         },
1558         .eth_dev_init = i40evf_dev_init,
1559         .eth_dev_uninit = i40evf_dev_uninit,
1560         .dev_private_size = sizeof(struct i40e_adapter),
1561 };
1562
1563 /*
1564  * VF Driver initialization routine.
1565  * Invoked one at EAL init time.
1566  * Register itself as the [Virtual Poll Mode] Driver of PCI Fortville devices.
1567  */
1568 static int
1569 rte_i40evf_pmd_init(const char *name __rte_unused,
1570                     const char *params __rte_unused)
1571 {
1572         PMD_INIT_FUNC_TRACE();
1573
1574         rte_eth_driver_register(&rte_i40evf_pmd);
1575
1576         return 0;
1577 }
1578
1579 static struct rte_driver rte_i40evf_driver = {
1580         .type = PMD_PDEV,
1581         .init = rte_i40evf_pmd_init,
1582 };
1583
1584 PMD_REGISTER_DRIVER(rte_i40evf_driver);
1585
1586 static int
1587 i40evf_dev_configure(struct rte_eth_dev *dev)
1588 {
1589         struct i40e_adapter *ad =
1590                 I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
1591         struct rte_eth_conf *conf = &dev->data->dev_conf;
1592         struct i40e_vf *vf;
1593
1594         /* Initialize to TRUE. If any of Rx queues doesn't meet the bulk
1595          * allocation or vector Rx preconditions we will reset it.
1596          */
1597         ad->rx_bulk_alloc_allowed = true;
1598         ad->rx_vec_allowed = true;
1599         ad->tx_simple_allowed = true;
1600         ad->tx_vec_allowed = true;
1601
1602         /* For non-DPDK PF drivers, VF has no ability to disable HW
1603          * CRC strip, and is implicitly enabled by the PF.
1604          */
1605         if (!conf->rxmode.hw_strip_crc) {
1606                 vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1607                 if ((vf->version_major == I40E_VIRTCHNL_VERSION_MAJOR) &&
1608                     (vf->version_minor <= I40E_VIRTCHNL_VERSION_MINOR)) {
1609                         /* Peer is running non-DPDK PF driver. */
1610                         PMD_INIT_LOG(ERR, "VF can't disable HW CRC Strip");
1611                         return -EINVAL;
1612                 }
1613         }
1614
1615         return i40evf_init_vlan(dev);
1616 }
1617
1618 static int
1619 i40evf_init_vlan(struct rte_eth_dev *dev)
1620 {
1621         struct rte_eth_dev_data *data = dev->data;
1622         int ret;
1623
1624         /* Apply vlan offload setting */
1625         i40evf_vlan_offload_set(dev, ETH_VLAN_STRIP_MASK);
1626
1627         /* Apply pvid setting */
1628         ret = i40evf_vlan_pvid_set(dev, data->dev_conf.txmode.pvid,
1629                                 data->dev_conf.txmode.hw_vlan_insert_pvid);
1630         return ret;
1631 }
1632
1633 static void
1634 i40evf_vlan_offload_set(struct rte_eth_dev *dev, int mask)
1635 {
1636         bool enable_vlan_strip = 0;
1637         struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
1638         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1639
1640         /* Linux pf host doesn't support vlan offload yet */
1641         if (vf->version_major == I40E_DPDK_VERSION_MAJOR) {
1642                 /* Vlan stripping setting */
1643                 if (mask & ETH_VLAN_STRIP_MASK) {
1644                         /* Enable or disable VLAN stripping */
1645                         if (dev_conf->rxmode.hw_vlan_strip)
1646                                 enable_vlan_strip = 1;
1647                         else
1648                                 enable_vlan_strip = 0;
1649
1650                         i40evf_config_vlan_offload(dev, enable_vlan_strip);
1651                 }
1652         }
1653 }
1654
1655 static int
1656 i40evf_vlan_pvid_set(struct rte_eth_dev *dev, uint16_t pvid, int on)
1657 {
1658         struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
1659         struct i40e_vsi_vlan_pvid_info info;
1660         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1661
1662         memset(&info, 0, sizeof(info));
1663         info.on = on;
1664
1665         /* Linux pf host don't support vlan offload yet */
1666         if (vf->version_major == I40E_DPDK_VERSION_MAJOR) {
1667                 if (info.on)
1668                         info.config.pvid = pvid;
1669                 else {
1670                         info.config.reject.tagged =
1671                                 dev_conf->txmode.hw_vlan_reject_tagged;
1672                         info.config.reject.untagged =
1673                                 dev_conf->txmode.hw_vlan_reject_untagged;
1674                 }
1675                 return i40evf_config_vlan_pvid(dev, &info);
1676         }
1677
1678         return 0;
1679 }
1680
1681 static int
1682 i40evf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1683 {
1684         struct i40e_rx_queue *rxq;
1685         int err = 0;
1686         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1687
1688         PMD_INIT_FUNC_TRACE();
1689
1690         if (rx_queue_id < dev->data->nb_rx_queues) {
1691                 rxq = dev->data->rx_queues[rx_queue_id];
1692
1693                 err = i40e_alloc_rx_queue_mbufs(rxq);
1694                 if (err) {
1695                         PMD_DRV_LOG(ERR, "Failed to allocate RX queue mbuf");
1696                         return err;
1697                 }
1698
1699                 rte_wmb();
1700
1701                 /* Init the RX tail register. */
1702                 I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
1703                 I40EVF_WRITE_FLUSH(hw);
1704
1705                 /* Ready to switch the queue on */
1706                 err = i40evf_switch_queue(dev, TRUE, rx_queue_id, TRUE);
1707
1708                 if (err)
1709                         PMD_DRV_LOG(ERR, "Failed to switch RX queue %u on",
1710                                     rx_queue_id);
1711                 else
1712                         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
1713         }
1714
1715         return err;
1716 }
1717
1718 static int
1719 i40evf_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1720 {
1721         struct i40e_rx_queue *rxq;
1722         int err;
1723
1724         if (rx_queue_id < dev->data->nb_rx_queues) {
1725                 rxq = dev->data->rx_queues[rx_queue_id];
1726
1727                 err = i40evf_switch_queue(dev, TRUE, rx_queue_id, FALSE);
1728
1729                 if (err) {
1730                         PMD_DRV_LOG(ERR, "Failed to switch RX queue %u off",
1731                                     rx_queue_id);
1732                         return err;
1733                 }
1734
1735                 i40e_rx_queue_release_mbufs(rxq);
1736                 i40e_reset_rx_queue(rxq);
1737                 dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
1738         }
1739
1740         return 0;
1741 }
1742
1743 static int
1744 i40evf_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1745 {
1746         int err = 0;
1747
1748         PMD_INIT_FUNC_TRACE();
1749
1750         if (tx_queue_id < dev->data->nb_tx_queues) {
1751
1752                 /* Ready to switch the queue on */
1753                 err = i40evf_switch_queue(dev, FALSE, tx_queue_id, TRUE);
1754
1755                 if (err)
1756                         PMD_DRV_LOG(ERR, "Failed to switch TX queue %u on",
1757                                     tx_queue_id);
1758                 else
1759                         dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
1760         }
1761
1762         return err;
1763 }
1764
1765 static int
1766 i40evf_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1767 {
1768         struct i40e_tx_queue *txq;
1769         int err;
1770
1771         if (tx_queue_id < dev->data->nb_tx_queues) {
1772                 txq = dev->data->tx_queues[tx_queue_id];
1773
1774                 err = i40evf_switch_queue(dev, FALSE, tx_queue_id, FALSE);
1775
1776                 if (err) {
1777                         PMD_DRV_LOG(ERR, "Failed to switch TX queue %u off",
1778                                     tx_queue_id);
1779                         return err;
1780                 }
1781
1782                 i40e_tx_queue_release_mbufs(txq);
1783                 i40e_reset_tx_queue(txq);
1784                 dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
1785         }
1786
1787         return 0;
1788 }
1789
1790 static int
1791 i40evf_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
1792 {
1793         int ret;
1794
1795         if (on)
1796                 ret = i40evf_add_vlan(dev, vlan_id);
1797         else
1798                 ret = i40evf_del_vlan(dev,vlan_id);
1799
1800         return ret;
1801 }
1802
1803 static int
1804 i40evf_rxq_init(struct rte_eth_dev *dev, struct i40e_rx_queue *rxq)
1805 {
1806         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1807         struct rte_eth_dev_data *dev_data = dev->data;
1808         struct rte_pktmbuf_pool_private *mbp_priv;
1809         uint16_t buf_size, len;
1810
1811         rxq->qrx_tail = hw->hw_addr + I40E_QRX_TAIL1(rxq->queue_id);
1812         I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
1813         I40EVF_WRITE_FLUSH(hw);
1814
1815         /* Calculate the maximum packet length allowed */
1816         mbp_priv = rte_mempool_get_priv(rxq->mp);
1817         buf_size = (uint16_t)(mbp_priv->mbuf_data_room_size -
1818                                         RTE_PKTMBUF_HEADROOM);
1819         rxq->hs_mode = i40e_header_split_none;
1820         rxq->rx_hdr_len = 0;
1821         rxq->rx_buf_len = RTE_ALIGN(buf_size, (1 << I40E_RXQ_CTX_DBUFF_SHIFT));
1822         len = rxq->rx_buf_len * I40E_MAX_CHAINED_RX_BUFFERS;
1823         rxq->max_pkt_len = RTE_MIN(len,
1824                 dev_data->dev_conf.rxmode.max_rx_pkt_len);
1825
1826         /**
1827          * Check if the jumbo frame and maximum packet length are set correctly
1828          */
1829         if (dev_data->dev_conf.rxmode.jumbo_frame == 1) {
1830                 if (rxq->max_pkt_len <= ETHER_MAX_LEN ||
1831                     rxq->max_pkt_len > I40E_FRAME_SIZE_MAX) {
1832                         PMD_DRV_LOG(ERR, "maximum packet length must be "
1833                                 "larger than %u and smaller than %u, as jumbo "
1834                                 "frame is enabled", (uint32_t)ETHER_MAX_LEN,
1835                                         (uint32_t)I40E_FRAME_SIZE_MAX);
1836                         return I40E_ERR_CONFIG;
1837                 }
1838         } else {
1839                 if (rxq->max_pkt_len < ETHER_MIN_LEN ||
1840                     rxq->max_pkt_len > ETHER_MAX_LEN) {
1841                         PMD_DRV_LOG(ERR, "maximum packet length must be "
1842                                 "larger than %u and smaller than %u, as jumbo "
1843                                 "frame is disabled", (uint32_t)ETHER_MIN_LEN,
1844                                                 (uint32_t)ETHER_MAX_LEN);
1845                         return I40E_ERR_CONFIG;
1846                 }
1847         }
1848
1849         if (dev_data->dev_conf.rxmode.enable_scatter ||
1850             (rxq->max_pkt_len + 2 * I40E_VLAN_TAG_SIZE) > buf_size) {
1851                 dev_data->scattered_rx = 1;
1852         }
1853
1854         return 0;
1855 }
1856
1857 static int
1858 i40evf_rx_init(struct rte_eth_dev *dev)
1859 {
1860         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1861         uint16_t i;
1862         int ret = I40E_SUCCESS;
1863         struct i40e_rx_queue **rxq =
1864                 (struct i40e_rx_queue **)dev->data->rx_queues;
1865
1866         i40evf_config_rss(vf);
1867         for (i = 0; i < dev->data->nb_rx_queues; i++) {
1868                 if (!rxq[i] || !rxq[i]->q_set)
1869                         continue;
1870                 ret = i40evf_rxq_init(dev, rxq[i]);
1871                 if (ret != I40E_SUCCESS)
1872                         break;
1873         }
1874         if (ret == I40E_SUCCESS)
1875                 i40e_set_rx_function(dev);
1876
1877         return ret;
1878 }
1879
1880 static void
1881 i40evf_tx_init(struct rte_eth_dev *dev)
1882 {
1883         uint16_t i;
1884         struct i40e_tx_queue **txq =
1885                 (struct i40e_tx_queue **)dev->data->tx_queues;
1886         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1887
1888         for (i = 0; i < dev->data->nb_tx_queues; i++)
1889                 txq[i]->qtx_tail = hw->hw_addr + I40E_QTX_TAIL1(i);
1890
1891         i40e_set_tx_function(dev);
1892 }
1893
1894 static inline void
1895 i40evf_enable_queues_intr(struct rte_eth_dev *dev)
1896 {
1897         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1898         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1899         struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
1900
1901         if (!rte_intr_allow_others(intr_handle)) {
1902                 I40E_WRITE_REG(hw,
1903                                I40E_VFINT_DYN_CTL01,
1904                                I40E_VFINT_DYN_CTL01_INTENA_MASK |
1905                                I40E_VFINT_DYN_CTL01_CLEARPBA_MASK |
1906                                I40E_VFINT_DYN_CTL01_ITR_INDX_MASK);
1907                 I40EVF_WRITE_FLUSH(hw);
1908                 return;
1909         }
1910
1911         if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
1912                 /* To support DPDK PF host */
1913                 I40E_WRITE_REG(hw,
1914                         I40E_VFINT_DYN_CTLN1(I40EVF_VSI_DEFAULT_MSIX_INTR - 1),
1915                         I40E_VFINT_DYN_CTLN1_INTENA_MASK |
1916                         I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
1917         /* If host driver is kernel driver, do nothing.
1918          * Interrupt 0 is used for rx packets, but don't set
1919          * I40E_VFINT_DYN_CTL01,
1920          * because it is already done in i40evf_enable_irq0.
1921          */
1922
1923         I40EVF_WRITE_FLUSH(hw);
1924 }
1925
1926 static inline void
1927 i40evf_disable_queues_intr(struct rte_eth_dev *dev)
1928 {
1929         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1930         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1931         struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
1932
1933         if (!rte_intr_allow_others(intr_handle)) {
1934                 I40E_WRITE_REG(hw, I40E_VFINT_DYN_CTL01,
1935                                I40E_VFINT_DYN_CTL01_ITR_INDX_MASK);
1936                 I40EVF_WRITE_FLUSH(hw);
1937                 return;
1938         }
1939
1940         if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
1941                 I40E_WRITE_REG(hw,
1942                                I40E_VFINT_DYN_CTLN1(I40EVF_VSI_DEFAULT_MSIX_INTR
1943                                                     - 1),
1944                                0);
1945         /* If host driver is kernel driver, do nothing.
1946          * Interrupt 0 is used for rx packets, but don't zero
1947          * I40E_VFINT_DYN_CTL01,
1948          * because interrupt 0 is also used for adminq processing.
1949          */
1950
1951         I40EVF_WRITE_FLUSH(hw);
1952 }
1953
1954 static int
1955 i40evf_dev_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
1956 {
1957         struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
1958         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1959         uint16_t interval =
1960                 i40e_calc_itr_interval(RTE_LIBRTE_I40E_ITR_INTERVAL);
1961         uint16_t msix_intr;
1962
1963         msix_intr = intr_handle->intr_vec[queue_id];
1964         if (msix_intr == I40E_MISC_VEC_ID)
1965                 I40E_WRITE_REG(hw, I40E_VFINT_DYN_CTL01,
1966                                I40E_VFINT_DYN_CTL01_INTENA_MASK |
1967                                I40E_VFINT_DYN_CTL01_CLEARPBA_MASK |
1968                                (0 << I40E_VFINT_DYN_CTL01_ITR_INDX_SHIFT) |
1969                                (interval <<
1970                                 I40E_VFINT_DYN_CTL01_INTERVAL_SHIFT));
1971         else
1972                 I40E_WRITE_REG(hw,
1973                                I40E_VFINT_DYN_CTLN1(msix_intr -
1974                                                     I40E_RX_VEC_START),
1975                                I40E_VFINT_DYN_CTLN1_INTENA_MASK |
1976                                I40E_VFINT_DYN_CTLN1_CLEARPBA_MASK |
1977                                (0 << I40E_VFINT_DYN_CTLN1_ITR_INDX_SHIFT) |
1978                                (interval <<
1979                                 I40E_VFINT_DYN_CTLN1_INTERVAL_SHIFT));
1980
1981         I40EVF_WRITE_FLUSH(hw);
1982
1983         rte_intr_enable(&dev->pci_dev->intr_handle);
1984
1985         return 0;
1986 }
1987
1988 static int
1989 i40evf_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
1990 {
1991         struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
1992         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1993         uint16_t msix_intr;
1994
1995         msix_intr = intr_handle->intr_vec[queue_id];
1996         if (msix_intr == I40E_MISC_VEC_ID)
1997                 I40E_WRITE_REG(hw, I40E_VFINT_DYN_CTL01, 0);
1998         else
1999                 I40E_WRITE_REG(hw,
2000                                I40E_VFINT_DYN_CTLN1(msix_intr -
2001                                                     I40E_RX_VEC_START),
2002                                0);
2003
2004         I40EVF_WRITE_FLUSH(hw);
2005
2006         return 0;
2007 }
2008
2009 static void
2010 i40evf_add_del_all_mac_addr(struct rte_eth_dev *dev, bool add)
2011 {
2012         struct i40e_virtchnl_ether_addr_list *list;
2013         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2014         int err, i, j;
2015         int next_begin = 0;
2016         int begin = 0;
2017         uint32_t len;
2018         struct ether_addr *addr;
2019         struct vf_cmd_info args;
2020
2021         do {
2022                 j = 0;
2023                 len = sizeof(struct i40e_virtchnl_ether_addr_list);
2024                 for (i = begin; i < I40E_NUM_MACADDR_MAX; i++, next_begin++) {
2025                         if (is_zero_ether_addr(&dev->data->mac_addrs[i]))
2026                                 continue;
2027                         len += sizeof(struct i40e_virtchnl_ether_addr);
2028                         if (len >= I40E_AQ_BUF_SZ) {
2029                                 next_begin = i + 1;
2030                                 break;
2031                         }
2032                 }
2033
2034                 list = rte_zmalloc("i40evf_del_mac_buffer", len, 0);
2035
2036                 for (i = begin; i < next_begin; i++) {
2037                         addr = &dev->data->mac_addrs[i];
2038                         if (is_zero_ether_addr(addr))
2039                                 continue;
2040                         (void)rte_memcpy(list->list[j].addr, addr->addr_bytes,
2041                                          sizeof(addr->addr_bytes));
2042                         PMD_DRV_LOG(DEBUG, "add/rm mac:%x:%x:%x:%x:%x:%x",
2043                                     addr->addr_bytes[0], addr->addr_bytes[1],
2044                                     addr->addr_bytes[2], addr->addr_bytes[3],
2045                                     addr->addr_bytes[4], addr->addr_bytes[5]);
2046                         j++;
2047                 }
2048                 list->vsi_id = vf->vsi_res->vsi_id;
2049                 list->num_elements = j;
2050                 args.ops = add ? I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS :
2051                            I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS;
2052                 args.in_args = (uint8_t *)list;
2053                 args.in_args_size = len;
2054                 args.out_buffer = vf->aq_resp;
2055                 args.out_size = I40E_AQ_BUF_SZ;
2056                 err = i40evf_execute_vf_cmd(dev, &args);
2057                 if (err)
2058                         PMD_DRV_LOG(ERR, "fail to execute command %s",
2059                                     add ? "OP_ADD_ETHER_ADDRESS" :
2060                                     "OP_DEL_ETHER_ADDRESS");
2061                 rte_free(list);
2062                 begin = next_begin;
2063         } while (begin < I40E_NUM_MACADDR_MAX);
2064 }
2065
2066 static int
2067 i40evf_dev_start(struct rte_eth_dev *dev)
2068 {
2069         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2070         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2071         struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
2072         uint32_t intr_vector = 0;
2073
2074         PMD_INIT_FUNC_TRACE();
2075
2076         hw->adapter_stopped = 0;
2077
2078         vf->max_pkt_len = dev->data->dev_conf.rxmode.max_rx_pkt_len;
2079         vf->num_queue_pairs = RTE_MAX(dev->data->nb_rx_queues,
2080                                         dev->data->nb_tx_queues);
2081
2082         /* check and configure queue intr-vector mapping */
2083         if (dev->data->dev_conf.intr_conf.rxq != 0) {
2084                 intr_vector = dev->data->nb_rx_queues;
2085                 if (rte_intr_efd_enable(intr_handle, intr_vector))
2086                         return -1;
2087         }
2088
2089         if (rte_intr_dp_is_en(intr_handle) && !intr_handle->intr_vec) {
2090                 intr_handle->intr_vec =
2091                         rte_zmalloc("intr_vec",
2092                                     dev->data->nb_rx_queues * sizeof(int), 0);
2093                 if (!intr_handle->intr_vec) {
2094                         PMD_INIT_LOG(ERR, "Failed to allocate %d rx_queues"
2095                                      " intr_vec\n", dev->data->nb_rx_queues);
2096                         return -ENOMEM;
2097                 }
2098         }
2099
2100         if (i40evf_rx_init(dev) != 0){
2101                 PMD_DRV_LOG(ERR, "failed to do RX init");
2102                 return -1;
2103         }
2104
2105         i40evf_tx_init(dev);
2106
2107         if (i40evf_configure_queues(dev) != 0) {
2108                 PMD_DRV_LOG(ERR, "configure queues failed");
2109                 goto err_queue;
2110         }
2111         if (i40evf_config_irq_map(dev)) {
2112                 PMD_DRV_LOG(ERR, "config_irq_map failed");
2113                 goto err_queue;
2114         }
2115
2116         /* Set all mac addrs */
2117         i40evf_add_del_all_mac_addr(dev, TRUE);
2118
2119         if (i40evf_start_queues(dev) != 0) {
2120                 PMD_DRV_LOG(ERR, "enable queues failed");
2121                 goto err_mac;
2122         }
2123
2124         i40evf_enable_queues_intr(dev);
2125         return 0;
2126
2127 err_mac:
2128         i40evf_add_del_all_mac_addr(dev, FALSE);
2129 err_queue:
2130         return -1;
2131 }
2132
2133 static void
2134 i40evf_dev_stop(struct rte_eth_dev *dev)
2135 {
2136         struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
2137
2138         PMD_INIT_FUNC_TRACE();
2139
2140         i40evf_stop_queues(dev);
2141         i40evf_disable_queues_intr(dev);
2142         i40e_dev_clear_queues(dev);
2143
2144         /* Clean datapath event and queue/vec mapping */
2145         rte_intr_efd_disable(intr_handle);
2146         if (intr_handle->intr_vec) {
2147                 rte_free(intr_handle->intr_vec);
2148                 intr_handle->intr_vec = NULL;
2149         }
2150         /* remove all mac addrs */
2151         i40evf_add_del_all_mac_addr(dev, FALSE);
2152
2153 }
2154
2155 static int
2156 i40evf_dev_link_update(struct rte_eth_dev *dev,
2157                        __rte_unused int wait_to_complete)
2158 {
2159         struct rte_eth_link new_link;
2160         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2161         /*
2162          * DPDK pf host provide interfacet to acquire link status
2163          * while Linux driver does not
2164          */
2165         if (vf->version_major == I40E_DPDK_VERSION_MAJOR)
2166                 i40evf_get_link_status(dev, &new_link);
2167         else {
2168                 /* Linux driver PF host */
2169                 switch (vf->link_speed) {
2170                 case I40E_LINK_SPEED_100MB:
2171                         new_link.link_speed = ETH_SPEED_NUM_100M;
2172                         break;
2173                 case I40E_LINK_SPEED_1GB:
2174                         new_link.link_speed = ETH_SPEED_NUM_1G;
2175                         break;
2176                 case I40E_LINK_SPEED_10GB:
2177                         new_link.link_speed = ETH_SPEED_NUM_10G;
2178                         break;
2179                 case I40E_LINK_SPEED_20GB:
2180                         new_link.link_speed = ETH_SPEED_NUM_20G;
2181                         break;
2182                 case I40E_LINK_SPEED_40GB:
2183                         new_link.link_speed = ETH_SPEED_NUM_40G;
2184                         break;
2185                 default:
2186                         new_link.link_speed = ETH_SPEED_NUM_100M;
2187                         break;
2188                 }
2189                 /* full duplex only */
2190                 new_link.link_duplex = ETH_LINK_FULL_DUPLEX;
2191                 new_link.link_status = vf->link_up ? ETH_LINK_UP :
2192                                                      ETH_LINK_DOWN;
2193         }
2194         i40evf_dev_atomic_write_link_status(dev, &new_link);
2195
2196         return 0;
2197 }
2198
2199 static void
2200 i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev)
2201 {
2202         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2203         int ret;
2204
2205         /* If enabled, just return */
2206         if (vf->promisc_unicast_enabled)
2207                 return;
2208
2209         ret = i40evf_config_promisc(dev, 1, vf->promisc_multicast_enabled);
2210         if (ret == 0)
2211                 vf->promisc_unicast_enabled = TRUE;
2212 }
2213
2214 static void
2215 i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev)
2216 {
2217         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2218         int ret;
2219
2220         /* If disabled, just return */
2221         if (!vf->promisc_unicast_enabled)
2222                 return;
2223
2224         ret = i40evf_config_promisc(dev, 0, vf->promisc_multicast_enabled);
2225         if (ret == 0)
2226                 vf->promisc_unicast_enabled = FALSE;
2227 }
2228
2229 static void
2230 i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev)
2231 {
2232         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2233         int ret;
2234
2235         /* If enabled, just return */
2236         if (vf->promisc_multicast_enabled)
2237                 return;
2238
2239         ret = i40evf_config_promisc(dev, vf->promisc_unicast_enabled, 1);
2240         if (ret == 0)
2241                 vf->promisc_multicast_enabled = TRUE;
2242 }
2243
2244 static void
2245 i40evf_dev_allmulticast_disable(struct rte_eth_dev *dev)
2246 {
2247         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2248         int ret;
2249
2250         /* If enabled, just return */
2251         if (!vf->promisc_multicast_enabled)
2252                 return;
2253
2254         ret = i40evf_config_promisc(dev, vf->promisc_unicast_enabled, 0);
2255         if (ret == 0)
2256                 vf->promisc_multicast_enabled = FALSE;
2257 }
2258
2259 static void
2260 i40evf_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
2261 {
2262         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2263
2264         memset(dev_info, 0, sizeof(*dev_info));
2265         dev_info->max_rx_queues = vf->vsi_res->num_queue_pairs;
2266         dev_info->max_tx_queues = vf->vsi_res->num_queue_pairs;
2267         dev_info->min_rx_bufsize = I40E_BUF_SIZE_MIN;
2268         dev_info->max_rx_pktlen = I40E_FRAME_SIZE_MAX;
2269         dev_info->hash_key_size = (I40E_VFQF_HKEY_MAX_INDEX + 1) * sizeof(uint32_t);
2270         dev_info->reta_size = ETH_RSS_RETA_SIZE_64;
2271         dev_info->flow_type_rss_offloads = I40E_RSS_OFFLOAD_ALL;
2272         dev_info->max_mac_addrs = I40E_NUM_MACADDR_MAX;
2273         dev_info->rx_offload_capa =
2274                 DEV_RX_OFFLOAD_VLAN_STRIP |
2275                 DEV_RX_OFFLOAD_QINQ_STRIP |
2276                 DEV_RX_OFFLOAD_IPV4_CKSUM |
2277                 DEV_RX_OFFLOAD_UDP_CKSUM |
2278                 DEV_RX_OFFLOAD_TCP_CKSUM;
2279         dev_info->tx_offload_capa =
2280                 DEV_TX_OFFLOAD_VLAN_INSERT |
2281                 DEV_TX_OFFLOAD_QINQ_INSERT |
2282                 DEV_TX_OFFLOAD_IPV4_CKSUM |
2283                 DEV_TX_OFFLOAD_UDP_CKSUM |
2284                 DEV_TX_OFFLOAD_TCP_CKSUM |
2285                 DEV_TX_OFFLOAD_SCTP_CKSUM;
2286
2287         dev_info->default_rxconf = (struct rte_eth_rxconf) {
2288                 .rx_thresh = {
2289                         .pthresh = I40E_DEFAULT_RX_PTHRESH,
2290                         .hthresh = I40E_DEFAULT_RX_HTHRESH,
2291                         .wthresh = I40E_DEFAULT_RX_WTHRESH,
2292                 },
2293                 .rx_free_thresh = I40E_DEFAULT_RX_FREE_THRESH,
2294                 .rx_drop_en = 0,
2295         };
2296
2297         dev_info->default_txconf = (struct rte_eth_txconf) {
2298                 .tx_thresh = {
2299                         .pthresh = I40E_DEFAULT_TX_PTHRESH,
2300                         .hthresh = I40E_DEFAULT_TX_HTHRESH,
2301                         .wthresh = I40E_DEFAULT_TX_WTHRESH,
2302                 },
2303                 .tx_free_thresh = I40E_DEFAULT_TX_FREE_THRESH,
2304                 .tx_rs_thresh = I40E_DEFAULT_TX_RSBIT_THRESH,
2305                 .txq_flags = ETH_TXQ_FLAGS_NOMULTSEGS |
2306                                 ETH_TXQ_FLAGS_NOOFFLOADS,
2307         };
2308
2309         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
2310                 .nb_max = I40E_MAX_RING_DESC,
2311                 .nb_min = I40E_MIN_RING_DESC,
2312                 .nb_align = I40E_ALIGN_RING_DESC,
2313         };
2314
2315         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
2316                 .nb_max = I40E_MAX_RING_DESC,
2317                 .nb_min = I40E_MIN_RING_DESC,
2318                 .nb_align = I40E_ALIGN_RING_DESC,
2319         };
2320 }
2321
2322 static void
2323 i40evf_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
2324 {
2325         if (i40evf_get_statics(dev, stats))
2326                 PMD_DRV_LOG(ERR, "Get statics failed");
2327 }
2328
2329 static void
2330 i40evf_dev_close(struct rte_eth_dev *dev)
2331 {
2332         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2333         struct rte_pci_device *pci_dev = dev->pci_dev;
2334
2335         i40evf_dev_stop(dev);
2336         hw->adapter_stopped = 1;
2337         i40e_dev_free_queues(dev);
2338         i40evf_reset_vf(hw);
2339         i40e_shutdown_adminq(hw);
2340         /* disable uio intr before callback unregister */
2341         rte_intr_disable(&pci_dev->intr_handle);
2342
2343         /* unregister callback func from eal lib */
2344         rte_intr_callback_unregister(&pci_dev->intr_handle,
2345                 i40evf_dev_interrupt_handler, (void *)dev);
2346         i40evf_disable_irq0(hw);
2347 }
2348
2349 static int
2350 i40evf_get_rss_lut(struct i40e_vsi *vsi, uint8_t *lut, uint16_t lut_size)
2351 {
2352         struct i40e_vf *vf = I40E_VSI_TO_VF(vsi);
2353         struct i40e_hw *hw = I40E_VSI_TO_HW(vsi);
2354         int ret;
2355
2356         if (!lut)
2357                 return -EINVAL;
2358
2359         if (vf->flags & I40E_FLAG_RSS_AQ_CAPABLE) {
2360                 ret = i40e_aq_get_rss_lut(hw, vsi->vsi_id, FALSE,
2361                                           lut, lut_size);
2362                 if (ret) {
2363                         PMD_DRV_LOG(ERR, "Failed to get RSS lookup table");
2364                         return ret;
2365                 }
2366         } else {
2367                 uint32_t *lut_dw = (uint32_t *)lut;
2368                 uint16_t i, lut_size_dw = lut_size / 4;
2369
2370                 for (i = 0; i < lut_size_dw; i++)
2371                         lut_dw[i] = I40E_READ_REG(hw, I40E_VFQF_HLUT(i));
2372         }
2373
2374         return 0;
2375 }
2376
2377 static int
2378 i40evf_set_rss_lut(struct i40e_vsi *vsi, uint8_t *lut, uint16_t lut_size)
2379 {
2380         struct i40e_vf *vf = I40E_VSI_TO_VF(vsi);
2381         struct i40e_hw *hw = I40E_VSI_TO_HW(vsi);
2382         int ret;
2383
2384         if (!vsi || !lut)
2385                 return -EINVAL;
2386
2387         if (vf->flags & I40E_FLAG_RSS_AQ_CAPABLE) {
2388                 ret = i40e_aq_set_rss_lut(hw, vsi->vsi_id, FALSE,
2389                                           lut, lut_size);
2390                 if (ret) {
2391                         PMD_DRV_LOG(ERR, "Failed to set RSS lookup table");
2392                         return ret;
2393                 }
2394         } else {
2395                 uint32_t *lut_dw = (uint32_t *)lut;
2396                 uint16_t i, lut_size_dw = lut_size / 4;
2397
2398                 for (i = 0; i < lut_size_dw; i++)
2399                         I40E_WRITE_REG(hw, I40E_VFQF_HLUT(i), lut_dw[i]);
2400                 I40EVF_WRITE_FLUSH(hw);
2401         }
2402
2403         return 0;
2404 }
2405
2406 static int
2407 i40evf_dev_rss_reta_update(struct rte_eth_dev *dev,
2408                            struct rte_eth_rss_reta_entry64 *reta_conf,
2409                            uint16_t reta_size)
2410 {
2411         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2412         uint8_t *lut;
2413         uint16_t i, idx, shift;
2414         int ret;
2415
2416         if (reta_size != ETH_RSS_RETA_SIZE_64) {
2417                 PMD_DRV_LOG(ERR, "The size of hash lookup table configured "
2418                         "(%d) doesn't match the number of hardware can "
2419                         "support (%d)\n", reta_size, ETH_RSS_RETA_SIZE_64);
2420                 return -EINVAL;
2421         }
2422
2423         lut = rte_zmalloc("i40e_rss_lut", reta_size, 0);
2424         if (!lut) {
2425                 PMD_DRV_LOG(ERR, "No memory can be allocated");
2426                 return -ENOMEM;
2427         }
2428         ret = i40evf_get_rss_lut(&vf->vsi, lut, reta_size);
2429         if (ret)
2430                 goto out;
2431         for (i = 0; i < reta_size; i++) {
2432                 idx = i / RTE_RETA_GROUP_SIZE;
2433                 shift = i % RTE_RETA_GROUP_SIZE;
2434                 if (reta_conf[idx].mask & (1ULL << shift))
2435                         lut[i] = reta_conf[idx].reta[shift];
2436         }
2437         ret = i40evf_set_rss_lut(&vf->vsi, lut, reta_size);
2438
2439 out:
2440         rte_free(lut);
2441
2442         return ret;
2443 }
2444
2445 static int
2446 i40evf_dev_rss_reta_query(struct rte_eth_dev *dev,
2447                           struct rte_eth_rss_reta_entry64 *reta_conf,
2448                           uint16_t reta_size)
2449 {
2450         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2451         uint16_t i, idx, shift;
2452         uint8_t *lut;
2453         int ret;
2454
2455         if (reta_size != ETH_RSS_RETA_SIZE_64) {
2456                 PMD_DRV_LOG(ERR, "The size of hash lookup table configured "
2457                         "(%d) doesn't match the number of hardware can "
2458                         "support (%d)\n", reta_size, ETH_RSS_RETA_SIZE_64);
2459                 return -EINVAL;
2460         }
2461
2462         lut = rte_zmalloc("i40e_rss_lut", reta_size, 0);
2463         if (!lut) {
2464                 PMD_DRV_LOG(ERR, "No memory can be allocated");
2465                 return -ENOMEM;
2466         }
2467
2468         ret = i40evf_get_rss_lut(&vf->vsi, lut, reta_size);
2469         if (ret)
2470                 goto out;
2471         for (i = 0; i < reta_size; i++) {
2472                 idx = i / RTE_RETA_GROUP_SIZE;
2473                 shift = i % RTE_RETA_GROUP_SIZE;
2474                 if (reta_conf[idx].mask & (1ULL << shift))
2475                         reta_conf[idx].reta[shift] = lut[i];
2476         }
2477
2478 out:
2479         rte_free(lut);
2480
2481         return ret;
2482 }
2483
2484 static int
2485 i40evf_set_rss_key(struct i40e_vsi *vsi, uint8_t *key, uint8_t key_len)
2486 {
2487         struct i40e_vf *vf = I40E_VSI_TO_VF(vsi);
2488         struct i40e_hw *hw = I40E_VSI_TO_HW(vsi);
2489         int ret = 0;
2490
2491         if (!key || key_len == 0) {
2492                 PMD_DRV_LOG(DEBUG, "No key to be configured");
2493                 return 0;
2494         } else if (key_len != (I40E_VFQF_HKEY_MAX_INDEX + 1) *
2495                 sizeof(uint32_t)) {
2496                 PMD_DRV_LOG(ERR, "Invalid key length %u", key_len);
2497                 return -EINVAL;
2498         }
2499
2500         if (vf->flags & I40E_FLAG_RSS_AQ_CAPABLE) {
2501                 struct i40e_aqc_get_set_rss_key_data *key_dw =
2502                         (struct i40e_aqc_get_set_rss_key_data *)key;
2503
2504                 ret = i40e_aq_set_rss_key(hw, vsi->vsi_id, key_dw);
2505                 if (ret)
2506                         PMD_INIT_LOG(ERR, "Failed to configure RSS key "
2507                                      "via AQ");
2508         } else {
2509                 uint32_t *hash_key = (uint32_t *)key;
2510                 uint16_t i;
2511
2512                 for (i = 0; i <= I40E_VFQF_HKEY_MAX_INDEX; i++)
2513                         i40e_write_rx_ctl(hw, I40E_VFQF_HKEY(i), hash_key[i]);
2514                 I40EVF_WRITE_FLUSH(hw);
2515         }
2516
2517         return ret;
2518 }
2519
2520 static int
2521 i40evf_get_rss_key(struct i40e_vsi *vsi, uint8_t *key, uint8_t *key_len)
2522 {
2523         struct i40e_vf *vf = I40E_VSI_TO_VF(vsi);
2524         struct i40e_hw *hw = I40E_VSI_TO_HW(vsi);
2525         int ret;
2526
2527         if (!key || !key_len)
2528                 return -EINVAL;
2529
2530         if (vf->flags & I40E_FLAG_RSS_AQ_CAPABLE) {
2531                 ret = i40e_aq_get_rss_key(hw, vsi->vsi_id,
2532                         (struct i40e_aqc_get_set_rss_key_data *)key);
2533                 if (ret) {
2534                         PMD_INIT_LOG(ERR, "Failed to get RSS key via AQ");
2535                         return ret;
2536                 }
2537         } else {
2538                 uint32_t *key_dw = (uint32_t *)key;
2539                 uint16_t i;
2540
2541                 for (i = 0; i <= I40E_VFQF_HKEY_MAX_INDEX; i++)
2542                         key_dw[i] = i40e_read_rx_ctl(hw, I40E_VFQF_HKEY(i));
2543         }
2544         *key_len = (I40E_VFQF_HKEY_MAX_INDEX + 1) * sizeof(uint32_t);
2545
2546         return 0;
2547 }
2548
2549 static int
2550 i40evf_hw_rss_hash_set(struct i40e_vf *vf, struct rte_eth_rss_conf *rss_conf)
2551 {
2552         struct i40e_hw *hw = I40E_VF_TO_HW(vf);
2553         uint64_t rss_hf, hena;
2554         int ret;
2555
2556         ret = i40evf_set_rss_key(&vf->vsi, rss_conf->rss_key,
2557                                  rss_conf->rss_key_len);
2558         if (ret)
2559                 return ret;
2560
2561         rss_hf = rss_conf->rss_hf;
2562         hena = (uint64_t)i40e_read_rx_ctl(hw, I40E_VFQF_HENA(0));
2563         hena |= ((uint64_t)i40e_read_rx_ctl(hw, I40E_VFQF_HENA(1))) << 32;
2564         hena &= ~I40E_RSS_HENA_ALL;
2565         hena |= i40e_config_hena(rss_hf);
2566         i40e_write_rx_ctl(hw, I40E_VFQF_HENA(0), (uint32_t)hena);
2567         i40e_write_rx_ctl(hw, I40E_VFQF_HENA(1), (uint32_t)(hena >> 32));
2568         I40EVF_WRITE_FLUSH(hw);
2569
2570         return 0;
2571 }
2572
2573 static void
2574 i40evf_disable_rss(struct i40e_vf *vf)
2575 {
2576         struct i40e_hw *hw = I40E_VF_TO_HW(vf);
2577         uint64_t hena;
2578
2579         hena = (uint64_t)i40e_read_rx_ctl(hw, I40E_VFQF_HENA(0));
2580         hena |= ((uint64_t)i40e_read_rx_ctl(hw, I40E_VFQF_HENA(1))) << 32;
2581         hena &= ~I40E_RSS_HENA_ALL;
2582         i40e_write_rx_ctl(hw, I40E_VFQF_HENA(0), (uint32_t)hena);
2583         i40e_write_rx_ctl(hw, I40E_VFQF_HENA(1), (uint32_t)(hena >> 32));
2584         I40EVF_WRITE_FLUSH(hw);
2585 }
2586
2587 static int
2588 i40evf_config_rss(struct i40e_vf *vf)
2589 {
2590         struct i40e_hw *hw = I40E_VF_TO_HW(vf);
2591         struct rte_eth_rss_conf rss_conf;
2592         uint32_t i, j, lut = 0, nb_q = (I40E_VFQF_HLUT_MAX_INDEX + 1) * 4;
2593         uint16_t num;
2594
2595         if (vf->dev_data->dev_conf.rxmode.mq_mode != ETH_MQ_RX_RSS) {
2596                 i40evf_disable_rss(vf);
2597                 PMD_DRV_LOG(DEBUG, "RSS not configured\n");
2598                 return 0;
2599         }
2600
2601         num = RTE_MIN(vf->dev_data->nb_rx_queues, I40E_MAX_QP_NUM_PER_VF);
2602         /* Fill out the look up table */
2603         for (i = 0, j = 0; i < nb_q; i++, j++) {
2604                 if (j >= num)
2605                         j = 0;
2606                 lut = (lut << 8) | j;
2607                 if ((i & 3) == 3)
2608                         I40E_WRITE_REG(hw, I40E_VFQF_HLUT(i >> 2), lut);
2609         }
2610
2611         rss_conf = vf->dev_data->dev_conf.rx_adv_conf.rss_conf;
2612         if ((rss_conf.rss_hf & I40E_RSS_OFFLOAD_ALL) == 0) {
2613                 i40evf_disable_rss(vf);
2614                 PMD_DRV_LOG(DEBUG, "No hash flag is set\n");
2615                 return 0;
2616         }
2617
2618         if (rss_conf.rss_key == NULL || rss_conf.rss_key_len <
2619                 (I40E_VFQF_HKEY_MAX_INDEX + 1) * sizeof(uint32_t)) {
2620                 /* Calculate the default hash key */
2621                 for (i = 0; i <= I40E_VFQF_HKEY_MAX_INDEX; i++)
2622                         rss_key_default[i] = (uint32_t)rte_rand();
2623                 rss_conf.rss_key = (uint8_t *)rss_key_default;
2624                 rss_conf.rss_key_len = (I40E_VFQF_HKEY_MAX_INDEX + 1) *
2625                         sizeof(uint32_t);
2626         }
2627
2628         return i40evf_hw_rss_hash_set(vf, &rss_conf);
2629 }
2630
2631 static int
2632 i40evf_dev_rss_hash_update(struct rte_eth_dev *dev,
2633                            struct rte_eth_rss_conf *rss_conf)
2634 {
2635         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2636         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2637         uint64_t rss_hf = rss_conf->rss_hf & I40E_RSS_OFFLOAD_ALL;
2638         uint64_t hena;
2639
2640         hena = (uint64_t)i40e_read_rx_ctl(hw, I40E_VFQF_HENA(0));
2641         hena |= ((uint64_t)i40e_read_rx_ctl(hw, I40E_VFQF_HENA(1))) << 32;
2642         if (!(hena & I40E_RSS_HENA_ALL)) { /* RSS disabled */
2643                 if (rss_hf != 0) /* Enable RSS */
2644                         return -EINVAL;
2645                 return 0;
2646         }
2647
2648         /* RSS enabled */
2649         if (rss_hf == 0) /* Disable RSS */
2650                 return -EINVAL;
2651
2652         return i40evf_hw_rss_hash_set(vf, rss_conf);
2653 }
2654
2655 static int
2656 i40evf_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
2657                              struct rte_eth_rss_conf *rss_conf)
2658 {
2659         struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2660         struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2661         uint64_t hena;
2662
2663         i40evf_get_rss_key(&vf->vsi, rss_conf->rss_key,
2664                            &rss_conf->rss_key_len);
2665
2666         hena = (uint64_t)i40e_read_rx_ctl(hw, I40E_VFQF_HENA(0));
2667         hena |= ((uint64_t)i40e_read_rx_ctl(hw, I40E_VFQF_HENA(1))) << 32;
2668         rss_conf->rss_hf = i40e_parse_hena(hena);
2669
2670         return 0;
2671 }